Super Mario Galaxy (Wii [RMGE01]) — Complete Campaign Walkthrough

Create a save file

Insert the Super Mario Galaxy disc and begin from the title screen. On the file-selection screen, choose an empty planet. When the game asks whether to create a Super Mario Galaxy save file, press A to confirm. The file requires one free block in Wii system memory and can be marked with a Mii stored on the console.

After the file is created, select Play with this File whenever you want to continue. The file-selection screen shows the number of Power Stars and the total number of Star Bits collected on that file. Use this screen as a quick progress check before entering a mission.

The file-selection menu also provides Copy, Icon, and Erase. Copy duplicates a file to another planet and is useful before experimenting with a separate save. Erase permanently removes the selected file and cannot be undone. After completing a stage, the game gives you the option to save. Restarting the game resets your current lives, so do not treat lives as permanent file progress.

• Choose an empty planet on the file-selection screen.
• Create the file and confirm that its Power Star and Star Bit totals are visible.
• Use Copy rather than Erase if you want a backup or a separate test file.

Learn the Wii Remote and Nunchuk controls

Connect the Nunchuk to the Wii Remote. Hold the Wii Remote in your right hand and the Nunchuk in your left. Move Mario with the Nunchuk Control Stick. Press A to jump, speak to characters, read signs, swim, and grab a Pull Star when the appropriate prompt is available.

Press and hold Z to crouch. While running, press Z and then A to perform a long jump. Press Z in water to dive. The water dive is different from the land crouch: use it to descend beneath the surface, then monitor the air meter and return to the surface or an air bubble before the meter empties.

Shake the Wii Remote to spin. The spin stuns or defeats many enemies, activates certain objects, and breaks some obstacles. Shake while Mario is airborne to perform a spin jump. A midair spin can extend a jump or help correct Mario’s position, but it does not replace careful movement with the Control Stick. The manual also allows shaking the Nunchuk for actions normally performed by shaking the Wii Remote.

• Walk and run with the Control Stick.
• Jump with A, crouch with Z, and perform a long jump with Z followed by A while moving.
• Shake once on the ground and once during a jump to practice the spin.
• Try a dive in a safe body of water and watch the air meter.

Use the Star Pointer correctly

Point the Wii Remote at the screen to move the Star Pointer. It is not a conventional camera-control stick. Place the pointer over a Star Bit to collect it; you do not need to press A. Star Bits can also be collected by touching them with Mario. Keep gathering them during safe sections because they are used as ammunition and later as a resource for feeding Hungry Lumas.

Press B while aiming to shoot a Star Bit at a target. Most ordinary enemies can be stunned by a Star Bit and then defeated by running into them, although some enemies are immune or require a different method. Do not fire constantly when there is no tactical reason: Star Bits spent as shots are no longer available for later uses.

The pointer also selects Pull Stars and certain other interactive objects. To change the camera view, point at the screen as directed by the game; this is separate from moving Mario. If the view becomes disorienting, press C on the Nunchuk to reset the camera behind Mario or to the game’s current standard view.

• Collect Star Bits by pointing at them without pressing A.
• Shoot one Star Bit with B at a safe target.
• Press C after turning the camera to restore a useful view.
• Remember that the pointer aims and interacts; Mario’s movement still comes from the Nunchuk.

Enable Co-Star mode when a second player is available

Turn on a second Wii Remote before beginning a mission. On the file-selection screen, point at the two-player icon and press the indicated button to display the Co-Star controls. Player 1 controls Mario with the Wii Remote and Nunchuk. Player 2 uses only a Wii Remote and controls a second Star Pointer.

Player 2 can collect Star Bits by pointing at them, shoot Star Bits, stop some enemies, and make Mario jump by pointing at Mario and pressing A. Player 2 can also make Mario spin in midair by pointing at him and pressing the appropriate button. Pressing at the same time as Player 1 can produce a higher assisted jump.

Use Co-Star mode for gathering, stopping an enemy during a dangerous approach, or helping a newcomer understand the route. It does not remove the need for Player 1 to control Mario’s movement, judge landings, manage gravity, or choose safe jumps. During a precise platforming section, ask Player 2 to keep the pointer away from important targets if the second cursor becomes distracting.

• Connect and activate the second Wii Remote before entering a mission.
• Have Player 2 collect Star Bits while Player 1 moves through a safe area.
• Test the assist jump in open space before using it near hazards.
• Keep Player 1 responsible for movement and landing decisions.

Enter the first areas from the Observatory

The opening sequence leads Mario through the first Gateway Galaxy mission. Follow the visible route, use the pointer on Star Bits and Pull Stars, and shake near the Launch Star when the game indicates that it is ready. A Launch Star catapults Mario to another planetoid. Some Launch Stars are broken at first and require collecting all nearby Yellow Star Chips before they can be used.

After the opening mission, collecting the Grand Star returns Mario to the Comet Observatory. The first accessible dome is the Terrace, a grassy structure on the Observatory grounds. Approach the Pull Star at the top of the dome and press A to enter the galaxy-selection screen.

Point at a discovered galaxy and choose Fly to this Galaxy. The following screen lists its available missions. An undiscovered galaxy displays the number of Power Stars required to reveal it. Point at something other than a galaxy and press A if you need to rotate the galaxy display for a better view.

Inside a mission, a Pull Star moves Mario between marked points when selected and held. A Launch Star sends him along a fixed path to another planetoid or section. Pull Stars may require Blue Star Chips before they become usable; Launch Stars may require Yellow Star Chips. Follow the mission objective until the Power Star appears, then collect it to finish the mission. Completing a mission normally opens the next mission in that galaxy when one exists.

• Follow the opening route through Gateway Galaxy and use its Launch Star when available.
• After the Grand Star returns you to the Observatory, enter the Terrace.
• Use the Terrace Pull Star to open galaxy selection.
• Choose an available galaxy and mission, then use Pull Stars and Launch Stars as required.

Return to the Observatory and verify progress

When you collect a mission’s Power Star, the game returns Mario to the Comet Observatory. You do not need to walk back through the completed mission. At the hub, inspect the newly opened mission or dome before starting the next objective, and save when the game offers the save prompt.

The pause menu also lets you choose Return to the Observatory instead of resuming the current mission. Use this when you need to abandon a difficult attempt, but remember that returning does not complete the mission objective. A completed Power Star is the progress that matters.

As more domes open, speak with Polari to access the Observatory and Universe maps. The Universe Map shows how many Power Stars have been found in each galaxy, while the Star List records collected stars and helps identify unfinished areas. Use those screens instead of repeatedly revisiting galaxies at random.

• Collect a Power Star and confirm that Mario returns to the Observatory.
• Save the completed-stage progress when prompted.
• Use the pause menu’s Return to the Observatory only when abandoning an attempt.
• Check the map or Star List after several missions to track unfinished stars.

Begin Grand Star Rescue and find the three Star Bunnies

After the opening sequence, Mario wakes on Gateway Galaxy's grassy starting planet. Follow the apricot Star Bunny until it reaches its two friends. The three Star Bunnies then scatter around the planet. Search the crater near a small pool of water, the grassy area surrounded by rubbery bulbs, and the Warp Pipe. Enter the pipe to check the underground section when the route points there.

This opening area teaches that Mario's local gravity follows the planetoid beneath him. Walk and run around the curved surface instead of treating the planet like a flat stage. Use the Control Stick to move, A to jump, Z to crouch or dive, C to reset the camera, and shake the Wii Remote to spin. A midair spin gives extra reach and is useful for activating objects or correcting a jump.

• Follow the first Star Bunny until the other two appear.
• Find the bunny near the water crater, the bunny near the rubbery bulbs, and the bunny inside the Warp Pipe.
• Use the curved terrain to practice changing direction around a planetoid.
• Use the pointer to collect Star Bits automatically by moving it over them; do not press B to collect them.

Open the route to the first Launch Star

Once all three Star Bunnies are caught, the gateway sequence opens the route forward. Continue across the starting planet and spin the shock wave generators or crystal obstacles that block the path. When the Launch Star appears, jump toward it and shake the Wii Remote as Mario reaches it.

Launch Stars carry Mario between planetoids. Before activating one, look at the destination so you know where Mario will arrive. After landing, release the Control Stick for a moment and check the direction of the new planet's gravity. This pause helps prevent an immediate slide toward an edge, hole, or black hole.

The Star Pointer is mainly an interaction tool rather than a camera control. Moving it over nearby Star Bits collects them automatically. Press B only when you want to shoot a Star Bit at the location under the pointer, such as an enemy or another target.

• Clear the obstruction and activate the first Launch Star.
• Pause briefly after landing on each new planetoid to read its gravity.
• Use C if the camera makes the destination or landing surface difficult to judge.
• Collect Star Bits that are safely along the route.

Cross the hollow planet and gather five Yellow Star Chips

The next area is a hollow grassy planet with a black hole through its center. Meteors fall onto the surface, and Micro Goombas patrol the route. Stay on solid ground and avoid the holes unless the path specifically takes you around them. Search the planet for all five Yellow Star Chips.

Some Star Chips are enclosed in crystals. Stand beside a crystal and shake the Wii Remote to break it, then collect the exposed chip. When all five chips are gathered, they form a Launch Star. A 1-Up Mushroom on a stone pedestal can be collected if you can reach it safely, but it is optional and not needed to advance.

• Collect all five Yellow Star Chips.
• Break crystal containers with the Star Spin.
• Keep away from the hollow planet's central black hole.
• Use the optional 1-Up only when the approach is safe.

Free the trapped Luma and defeat the Grand Goomba

Take the Launch Star to the small metal planet. Follow the route past the Goombas until you find the enemy carrying the key. Defeat or bypass the surrounding enemies, take the key, and return it to the trapped Luma's cage. The freed Luma reveals the next route and Launch Star.

On the following metal planet, approach the Grand Goomba from the side rather than standing in front of it. Shake the Wii Remote to spin beside the enemy and flip it onto its back. Jump on the exposed underside to defeat it and obtain the next key. If the Grand Goomba faces you, keep moving around its side instead of trying to stomp its armored top.

• Defeat the key-bearing enemy on the first metal planet.
• Use the key to free the caged Luma.
• Spin beside the Grand Goomba to flip it over.
• Stomp the exposed underside and collect the second key.
• Enter the Warp Pipe beneath the metal planet.

Shut down the machine and collect the Grand Star

The Warp Pipe leads to an inverted spherical chamber filled with yellow Flipswitch Panels, Goombas, and moving electric platforms. The objective is to step on every panel so that all of them change from yellow to blue. You can run across the panels or use jumps and spins to reach separated sections.

The chamber's apparent floor changes as Mario moves around the sphere, so use C whenever the view becomes confusing. Keep moving around the outside of the chamber and avoid the electric platforms. A Goomba can be jumped over or stunned with a spin. Shooting a Star Bit with B can also interrupt many ordinary enemies, but Star Bits are not required for the panel puzzle.

When every Flipswitch Panel is blue, the machine shuts down and releases the Grand Star. Touch the Grand Star to complete Grand Star Rescue.

• Turn every Flipswitch Panel from yellow to blue.
• Avoid the electric platforms and the chamber's deadly drops.
• Use spins or jumps to get past Goombas.
• Collect the released Grand Star.

Return to the Observatory and follow the early unlock order

After Grand Star Rescue, Mario returns to the Comet Observatory and the Grand Star is added to the file's progress. Use a Pull Star at the top of an Observatory dome to reach its galaxy-selection screen, then point at an available galaxy and press B to fly there. In most galaxies, collecting a mission's Power Star opens the next mission in that same galaxy, if another mission exists. The manual also explains that collecting the final Grand Star in a dome opens the next dome.

Gateway Galaxy is an exception to the normal replay pattern. After Grand Star Rescue, it does not immediately appear as a regular galaxy icon for replay. Do not waste time searching the early dome screens for it. The course becomes available again only after the Gate is unlocked later in the campaign.

• Confirm that Grand Star Rescue has been recorded on the save file.
• Use the Pull Star and galaxy-selection screen to choose the next available course.
• Remember that clearing a normal mission usually opens the next mission in that galaxy.
• Do not expect Gateway Galaxy to be immediately replayable.

Unlock the Gate and complete Gateway's Purple Coins

The Gate becomes accessible after Mario recovers the sixth Grand Star by defeating King Kaliente in Bowser Jr.'s Lava Reactor. The Gate is a small floating grassy island above the Observatory, with a small house-like entrance. Enter it to return to Gateway Galaxy and choose Gateway's Purple Coins.

This mission requires all 100 Purple Coins on the starting planet: 70 are on or near the ground and 30 are suspended in the air. The Red Star lets Mario become Flying Mario. Jump and shake the Wii Remote to take off, then use controlled movements to line up with the airborne coins. Collecting a Red Star again restores access to the flight ability when needed.

Sweep the planet methodically rather than crossing back and forth at random. Check the flower patches, cottages, rocky outcroppings, lake area, and elevated routes, then use Flying Mario to collect the aerial groups. If Mario misses a flight, land safely, locate another Red Star, and continue. Falling or losing a life resets the attempt, so do not chase a coin across a dangerous gap without first correcting Mario's position.

When all 100 Purple Coins have been collected, the Red Power Star appears. Collect it to finish Gateway's Purple Coins. This is the game's only Red Power Star mission and makes Red Stars available at designated locations in the Comet Observatory.

• Complete King Kaliente's Spicy Return in Bowser Jr.'s Lava Reactor.
• Enter the Gate from its small floating island above the Observatory.
• Collect all 100 Purple Coins in Gateway's Purple Coins.
• Use Flying Mario for the airborne coins and land safely between flights.
• Collect the Red Power Star after the counter reaches 100.

Enter Good Egg Galaxy and defeat Dino Piranha

After collecting the Grand Star in Gateway Galaxy, enter the Terrace dome at the Comet Observatory and select Good Egg Galaxy. Start with Dino Piranha. The mission begins on the grassy starting planet. Follow the raised path and the blue arrow signs around the planet, then climb the tower on its darker side. A Launch Star at the top carries Mario to the next planet.

On the boulder planet, collect the five Star Chips to create another Launch Star. Continue through the following planetoids until you reach the planet containing Dino Piranha. Look for the Piranha Plant and spin it to reveal the route forward. The later platforms and Launch Stars lead directly to the boss planet.

Dino Piranha’s weak point is its tail. Circle around the small planet rather than standing in front of the boss. When the tail swings within reach, spin it so the tail strikes Dino Piranha. The boss recoils after a successful hit, then resumes chasing you. Repeat the same maneuver until the boss is defeated. Coins restore health if you have taken damage; Star Bits do not restore health.

After the final hit, collect the Power Star on the boss planet. Do not jump away immediately, because the Star is the mission’s completion reward and must be collected to record the clear.

• Collect the five Star Chips on the boulder planet to create the Launch Star.
• Stay behind or to the side of Dino Piranha and redirect its tail with a spin.
• Collect the Power Star after the final hit.

Feed the Hungry Luma in A Snack of Cosmic Proportions

Select A Snack of Cosmic Proportions after returning to Good Egg Galaxy. The starting planet is reused, but the route sends Mario toward the Hungry Luma instead of directly to Dino Piranha. Collect Star Bits from crystals, enemies, and floating groups as you travel. The Hungry Luma requires 100 Star Bits.

Do not spend Star Bits carelessly before reaching the Hungry Luma. If your total is short, inspect the nearby branches, crystals, and enemy groups before leaving the starting area. Once you have at least 100, speak to the Hungry Luma and feed it with the Star Pointer until it transforms into a new planet.

Use the Pull Stars in the transformed area to move between the small planets. On the final planet, collect the five Star Chips. They create a Launch Star to the Power Star. This mission is a useful early lesson in reserving Star Bits for a specific objective rather than firing them at every enemy.

• Reach the Hungry Luma with 100 Star Bits.
• Use the Pull Stars deliberately and aim for the next target before releasing.
• Collect all five Star Chips on the final planet.

Reflect King Kaliente’s coconuts

The third initial Good Egg mission is King Kaliente’s Battle Fleet. Follow the Launch Star route from the starting planet, using the house and the egg-shaped planetoids as landmarks. The route eventually reaches the volcanic arena where King Kaliente waits.

King Kaliente fires coconuts across the arena. Stand far enough away to see the projectile coming, then spin as the coconut reaches Mario to reflect it back at the boss. A reflected coconut must strike King Kaliente to cause damage. Do not rely on random spins near the boss.

After being hit, King Kaliente changes the pace of the fight and adds fireballs. Keep moving around the arena’s safe ground, watch the boss rather than the distant background, and wait for another coconut before attacking. Jump or change direction to avoid fireballs, then reflect the next useful coconut. Three successful reflected coconuts defeat the boss.

Collect the Grand Star after King Kaliente is defeated. This opens further Observatory progress and allows the next Terrace galaxy to become available when its star requirement is met.

• Reflect King Kaliente’s coconuts with the spin attack.
• Avoid the fireballs by moving around the arena and jumping when necessary.
• Collect the Grand Star at the end of the mission.

Learn Bee Mario in Honeyhive Galaxy

When Honeyhive Galaxy appears in the Terrace, begin with Bee Mario Takes Flight. The Bee Mushroom changes Mario into Bee Mario. In this form, Mario can cling to honeycomb walls, stand on flowers and clouds, and hover or fly for a limited time.

To use Bee Mario’s flight, jump and hold A. Guide Mario with the Nunchuk Control Stick, making small horizontal corrections instead of holding a direction for too long. The flight meter decreases while Mario is airborne. Touching stable ground, a wall, or certain coins can restore it. Taking damage or touching water removes the Bee form.

Plan every crossing before leaving the platform. Identify the next flower, cloud, honey wall, or solid ledge, then fly only far enough to reach it. If the meter empties, Mario falls; a missed landing can send him into the black hole below and cost a life. Bee Mario is not unrestricted flight, so short controlled movements are safer than long leaps.

Complete the route through the hive and reach the Toad Brigade and the Queen Bee’s area. Use the Bee Mushroom when the route requires flight, but use ordinary jumps on safe ground to line up each takeoff.

• Jump and hold A to hover as Bee Mario.
• Use small Control Stick adjustments and watch the flight meter.
• Avoid water and plan the next landing before taking off.

Clear Trouble on the Tower

The second Honeyhive mission, Trouble on the Tower, sends Mario through the hive against the Mandibugs. Follow the marked route upward and approach narrow platforms carefully. Mandibugs can knock Mario from ledges, so attack from the side with a jump or spin rather than running straight into them.

The mission includes a Mandibug Stack near the tower. Keep enough room to react, then jump or spin through the enemy when its approach is clear. If the route provides a Bee Mushroom, use it to reach honeycomb surfaces and bypass dangerous ground movement. Continue to the top and defeat the required enemies to reveal the Power Star.

• Use side approaches against Mandibugs on narrow platforms.
• Use honeycomb walls and Bee Mario only when they improve the route.
• Reach the top of the tower and collect the Power Star.

Defeat Bugaboom with three Ground Pounds

Big Bad Bugaboom is the third initial Honeyhive mission. Travel through the starting planet, pass Queen Bee, and use the Launch Star to reach Bugaboom’s planet. The planet contains Bee Mushrooms and Banandelions that help Mario gain height.

Bugaboom must be Ground Pounded three times. During the first phase, it charges along the ground. Use Bee Mario or a Banandelion to get above it, then land a Ground Pound on its back. After the first hit, Bugaboom takes flight and drops bombs. Cling to the nearby honeycomb walls, wait for Bugaboom to pass below, and descend with a Ground Pound when its back is positioned beneath you.

After the second hit, Bugaboom becomes faster and turns sideways during parts of its flight. It cannot be attacked while turned on its side. Wait until it presents its back again, then use the Bee Mushroom or Banandelions to gain height and Ground Pound it a third time. Do not chase it through the bomb pattern; let the boss come to a predictable position.

The third successful Ground Pound defeats Bugaboom and creates the Power Star. Collect it before leaving the planet.

• Ground Pound Bugaboom once while it charges on the ground.
• Use honeycombs and Bee Mario to attack during the airborne phase.
• Wait for Bugaboom to turn back from its side position, then land the third Ground Pound.

Return later for Luigi’s Terrace stars

Luigi’s rescue missions are delayed optional stars, not requirements for opening the first Terrace missions. Mailtoad delivers the relevant letters only after the necessary story progress and earlier Luigi rescues have occurred.

Luigi on the Roof in Good Egg Galaxy becomes available after the letter about Luigi is delivered following Luigi and the Haunted Mansion. Enter the mission and return to the grassy starting planet. On its underside, find the orange Warp Pipe leading into the interior room. Follow the ramps through the boulder-filled room to the second orange Warp Pipe, which takes Mario to the roof of the house. Speak to Luigi to receive the Power Star.

Luigi in the Honeyhive Kingdom requires the earlier Luigi rescues in Ghostly Galaxy, Good Egg Galaxy, and Battlerock Galaxy, followed by the appropriate Mailtoad letter. Enter a non-comet Honeyhive mission and use Bee Mario to fly up the initial hill. Climb the thin wooden wall, reach the top, and find Luigi clinging to a tree near the Flipbug. Ground Pound near him, bump him, or hit him with a Star Bit so he falls and awards the Power Star.

Good Egg and Honeyhive also receive later Speedy Comet, Purple Comet, race, and other optional missions. The Terrace’s separate challenge galaxies contain rolling-ball and surfing-style controls; do not apply Bee Mario’s flight controls to those missions.

• Wait for Mailtoad’s letter before searching for Luigi on the Roof.
• Use the orange Pipes on Good Egg’s starting planet to reach the roof route.
• Complete the earlier Luigi rescues before attempting Luigi in the Honeyhive Kingdom.
• Treat comet, race, Purple Coin, rolling-ball, and surfing missions as separate optional challenges.

1. Enter the Fountain and begin with Space Junk Galaxy

After Bowser Jr.’s Robot Reactor is cleared, enter the Fountain through the large Pull Star in the center of the dome. Select Space Junk Galaxy first. Its opening mission, Pull Star Path, teaches the movement pattern used throughout the galaxy. Point at a Pull Star until the pointer changes, then hold A to draw Mario toward it. Release A for a controlled drop, or press A again or shake the Wii Remote to leave quickly when the next platform is close.

Follow the visible chain through the debris field and collect Blue Star Chips whenever they are needed to rebuild a broken Pull Star. After the Launch Star sends Mario onward, stay alert for platforms that appear as Mario approaches and disappear after he moves away. The normal mission is not timed, so use it to memorize the order of the Pull Stars and the safest landing points before attempting its comet version. Press C to reset the camera before a difficult grab or long jump rather than correcting the view in midair.

• Complete Pull Star Path before attempting Pull Star Path Speed Run.
• Collect Blue Star Chips required to rebuild broken Pull Stars.
• Use the normal mission to learn the route instead of rushing the first attempt.

2. Clear Space Junk’s normal missions and unlock its special content

Kamella’s Airship Attack leads to a battle against Kamella. Keep moving around the arena and watch for objects that can be redirected with the Star Pointer. Avoid standing directly beneath Kamella when she is preparing an attack, and check the floor before committing to a jump because missed landings are costly in the open airship area.

Tarantox’s Tangled Web uses Sling Pods to cross the web-covered battlefield. Touch a Sling Pod, point toward it, hold A, and pull the pointer back. Release to launch Mario in the opposite direction. Aim for the web surfaces and use them to approach Tarantox’s exposed weak areas. Spin when Mario is lined up with a vulnerable section, then immediately move away from the boss’s body and web hazards.

After the regular missions have opened the relevant routes, look for the hidden Launch Star that leads to Yoshi’s Unexpected Appearance. This is a hidden mission, not the next required objective. If its marker is absent, continue through other available Fountain missions and return later. The Fountain Hungry Luma becomes available after Tarantox’s Tangled Web is complete; feed it 400 Star Bits to transform it into Sling Pod Galaxy.

• Clear Pull Star Path, Kamella’s Airship Attack, and Tarantox’s Tangled Web.
• Treat Yoshi’s Unexpected Appearance as a hidden star rather than a mandatory fourth opening mission.
• Feed the Fountain Hungry Luma 400 Star Bits only after Tarantox’s mission is complete.

3. Complete Rolling Green, Battlerock, and Hurry-Scurry

Rolling Green Galaxy contains one Star Ball course. Jump onto the ball, hold the Wii Remote upright, and tilt it in the direction Mario should travel. Make small adjustments near ramps and narrow landings. Approach ramps straight on, reduce the tilt before the landing, and use the jump input when a gap requires it. The Star Ball is controlled by Wii Remote tilt, not the Nunchuk Control Stick.

Battlerock Galaxy introduces cannons, metallic platforms, Topmen, and Topmaniac. In the early missions, use the available Launch Stars and cannons to advance through the saucers and Battlerock structures. During Topmaniac and the Topman Tribe, stay on broad sections of floor and use spins to knock Topmaniac into a vulnerable state. Attack only after its movement commits; chasing it toward an edge can turn a successful opening into a fall.

Hurry-Scurry Galaxy’s Shrinking Satellite requires Mario to collect every Music Note while the platforms disappear. Keep moving toward the next visible note and use short jumps rather than stopping at each platform edge. Reposition the camera before a jump so the next section is visible. If one missed note leaves an unsafe recovery route, restart instead of forcing a blind leap.

• Finish Rolling in the Clouds with controlled Star Ball movements.
• Advance through Battlerock’s normal missions and defeat Topmaniac when his arena becomes available.
• Collect every Music Note in Shrinking Satellite before the platforms vanish.

4. Enter Bowser’s Star Reactor when the Fountain route is unlocked

Bowser’s Star Reactor is the Fountain’s Bowser galaxy and requires 15 Power Stars to enter. It is separate from Bowser’s Galaxy Reactor, which is the later final galaxy containing The Fate of the Universe. Once the Fountain’s Bowser icon is active, use the dome’s central Pull Star and select Bowser’s Star Reactor. The galaxy contains only one mission: The Fiery Stronghold.

The approach is a fixed hazard route rather than a sequence of separate stars. Mario begins on a multicolored path surrounded by Fire Bars. Move through the opening without trying to outrun the rotating bars; wait for a safe gap, then cross the next section. Continue to the stone structure containing more Fire Bars, a Fire Shooter, and a Thwomp. Use the open spaces between cycles, and collect the 1-Up Mushroom if you can reach it without taking a risky detour.

Behind the Thwomp is a side-scrolling gravity section. Follow the direction arrows and keep Mario centered on the platforms as gravity shifts. Fire Bars, another Thwomp, and black-hole drops make the edges dangerous, so do not jump until the next gravity surface is clearly aligned. At the end, cross to the circular platform with Fire Bars arranged in an X formation.

The route then winds around the stone tower. Fire Bars, Fire Shooters, and Thwomps occupy the stairway, so advance in short bursts: move after a hazard passes, stop in a safe pocket, and observe the next cycle. Bowser appears partway up and fires meteors that break sections of the tiled platforms. Keep climbing rather than lingering on a damaged tile. A Life Mushroom is available on the ascent if you need extra health for the boss attempt. At the top, the dialogue ends with Mario being sent to the small Star Reactor planetoid.

• Have at least 15 Power Stars before selecting Bowser’s Star Reactor.
• Cross the opening Fire Bars and stone structure without falling into the lava or black hole.
• Survive the arrow-controlled gravity section.
• Climb the tower past Fire Bars, Fire Shooters, Thwomps, and Bowser’s meteor attacks.
• Reach the Star Reactor planetoid to begin the boss fight.

5. Defeat Bowser in The Fiery Stronghold

The boss arena begins with Bowser jumping and ground-pounding Mario’s position. The landing creates shock waves, so jump over them or use the green plates as cover when they are positioned between Mario and the wave. Lure Bowser onto a glowing blue panel. When he lands there, the panel breaks and the lava underneath burns his tail, causing him to run around the planetoid.

Catch up from behind and spin into Bowser’s burning tail. He flips over and slides across the arena. Spin into his exposed body while he is sliding to damage him. Do not attack before he is flipped; the safe opening is created by the burned tail.

In the next phase, Bowser adds fireballs and sends out two shock waves before repeating the jump attack. The green, rubbery bulbs that appear during his shell-roll attack are the counterattack objects. Stand so Bowser’s rolling path carries him toward a bulb, then spin the bulb into him. This stuns him and makes him slide across the arena. Follow him and spin into his exposed body during the slide.

The final phase repeats the pattern with more fireballs, more shock waves, and faster movement. Redirect another green bulb into Bowser during the shell roll, then spin him while he is stunned and sliding. In the last opening, he requires two spins after being flipped. Keep the camera oriented toward the arena and do not chase him across a shock wave; wait for the next safe opening if your position is poor.

If Mario loses a life, the entire mission restarts from the beginning, including the approach route. Power Stars, opened galaxies, and Observatory progress remain saved. On a retry, treat the tower as a practiced sequence: pause at safe platforms, collect the Life Mushroom when practical, and save the boss-specific concentration for the Star Reactor.

• Use a blue panel to burn Bowser’s tail during the opening phase.
• Spin Bowser’s burning tail, then spin his exposed body while he slides.
• During later shell rolls, redirect a green rubbery bulb into Bowser.
• Spin Bowser while stunned and sliding; perform the required final extra hit.
• Collect the Grand Star after Bowser is defeated.

6. Prepare for Fountain comet and Purple Coin missions

Pull Star Path Speed Run appears when a Speedy Comet is over Space Junk. Practice the normal route first and memorize the Pull Star order, camera changes, and landing points. On the timed attempt, aim toward the next Pull Star before Mario reaches the current one, but correct a bad angle instead of gambling on a missed grab.

Purple Coin Spacewalk appears when a Purple Comet is active over Space Junk. The mission requires 100 Purple Coins within its displayed time limit. Follow a planned route through the coin groups and keep the camera aimed toward the next debris section. Avoid turning around for one coin unless the return path is safe; a dangerous detour can cost the entire attempt.

Comets move between galaxies, so the required icon may not remain over Space Junk. Use the Observatory map and mission lists to identify where the next challenge is active. Optional comet stars and Hungry Luma galaxies add to the total but do not replace The Fiery Stronghold’s required Grand Star progression.

• Complete Pull Star Path Speed Run when its Speedy Comet is active.
• Collect all 100 Purple Coins in Purple Coin Spacewalk and reach the finish point for the Star.
• Use the Observatory map to locate comets rather than assuming they remain over one galaxy.

7. Keep Fountain content separate from later icy and final areas

The Fountain does not contain Freezeflame Galaxy. Freezeflame belongs to the Bedroom dome and should be handled in that chapter with its ice and Fire Flower mechanics. The Fountain’s movement challenges instead center on Pull Stars, Star Balls, cannons, gravity shifts, disappearing debris, and shrinking platforms.

Likewise, Bowser’s Star Reactor is not Bowser’s Galaxy Reactor. The Fountain reactor contains The Fiery Stronghold and awards the Grand Star after the first Bowser battle. Bowser’s Galaxy Reactor is the later final area, reached after the required Observatory progression and containing The Fate of the Universe. Do not postpone The Fiery Stronghold while waiting for the final-game access condition.

• Reserve Freezeflame and its icy missions for the Bedroom dome.
• Record The Fiery Stronghold as the Fountain’s single Bowser mission.
• Keep the first Bowser victory separate from the later final Bowser sequence.

Enter the Kitchen and learn the water controls

Beach Bowl Galaxy is the first regular Kitchen galaxy. It becomes available at 16 Power Stars after the required earlier Observatory progression. In ordinary water, use the Nunchuk Control Stick to steer Mario. Press A to swim, hold Z to descend, and release Z to rise. Shake the Wii Remote or Nunchuk to perform a spin-swim burst. The burst is useful for faster movement and for striking certain underwater enemies, but it carries Mario farther than a normal swim, so use it before open water rather than beside a narrow wall.

The Wii Remote pointer is mainly used to collect Star Bits and aim Star Bits with B. It does not steer Mario during ordinary swimming. Use C to reset the camera when the underwater view becomes misleading, especially before entering a tunnel, approaching a shell, or lining up with a Launch Star. The D-pad can also adjust the camera, but the Control Stick remains Mario's movement control.

• Steer with the Nunchuk Control Stick.
• Press A to swim and hold Z to descend.
• Shake for a spin-swim when speed or an attack is needed.
• Press C to reset the camera before a narrow underwater approach.

Clear Beach Bowl Galaxy before pursuing its special missions

In Sunken Treasure, begin by diving into the main planet's water and collecting all five Star Chips. They are scattered around the seabed, including open water, a wooden crate, a large eel hazard, and a giant clam. Spin to break the crate and approach the clam carefully. Once all five chips are collected, the Launch Star appears and carries Mario to the upper section.

At the upper section, ground-pound the first switch to create temporary platforms. Cross them quickly, then ground-pound the next switch to create the walls needed for the final wall-jump climb. Reach the Power Star at the top. Completing Sunken Treasure is also the prerequisite for the Kitchen Hungry Luma and for Buoy Base Galaxy's normal mission.

For Passing the Swim Test, speak to Coach Penguin before chasing the golden shell carrier. Dive after the small penguins, spin into the penguin carrying the shell, then return the shell to Coach Penguin. In The Secret Undersea Cavern, obtain a Koopa Shell underwater and throw it at the cracked wall to open the hidden route. Fast Foes on the Cyclone Stone, Beachcombing for Purple Coins, and Wall Jumping up Waterfalls are separate comet, Purple Coin, and hidden content; follow the Star List rather than assuming they are required for the Kitchen's next story step.

• Collect five Star Chips in Sunken Treasure.
• Speak to Coach Penguin before starting the Swim Test.
• Use a Koopa Shell to break the cracked wall for The Secret Undersea Cavern.
• Track comet, Purple Coin, and hidden stars separately from the required dome progression.

Unlock the Kitchen Hungry Luma and complete Drip Drop Galaxy

After Sunken Treasure is complete, a Hungry Luma appears near the Kitchen. This is not the entrance to Bubble Breeze Galaxy. Carry or farm 600 Star Bits, then feed them to the Hungry Luma. It transforms into Drip Drop Galaxy, whose mission is The Giant Eel Outbreak.

In Drip Drop, swim around the ocean planet and defeat the three giant eels with Koopa Shells. Red shells are easier to aim if a direct throw is difficult. Watch the shell's path, avoid the eel's body, and collect the Power Star after all three eels are defeated. Drip Drop is a one-Star Hungry Luma galaxy and should be recorded separately in the Star List from Bubble Breeze's normal one-Star mission.

• Complete Sunken Treasure first.
• Feed the Kitchen Hungry Luma 600 Star Bits.
• Defeat all three giant eels in The Giant Eel Outbreak.
• Record Drip Drop as Hungry Luma content, not as Bubble Breeze content.

Navigate Bubble Breeze Galaxy's poison swamp

Bubble Breeze Galaxy is a normal Kitchen galaxy that opens at 19 Power Stars. Enter it from the Kitchen map and select Through the Poison Swamp. At the start, stay on the grassy platforms; falling into the poison is fatal. Move across the safe land until the bubble instruction point, then jump into a bubble.

While inside the bubble, point the Wii Remote from the opposite side of the direction you want to travel and press A to blow the bubble. To move left, aim to the right side of the bubble; to move right, aim to the left. Use short, deliberate bursts rather than holding A continuously. Small corrections are easier to control around the swamp's islands, fans, and mines.

Walls do not automatically pop the bubble, but mines and the poison remain lethal hazards. Choose the next safe opening before entering a narrow passage. Use Z on the Nunchuk to leave the bubble when you reach a safe platform. Star Bits do not reveal the correct route, so save them for collecting, shooting eligible targets, or later Hungry Luma feeding. Reach the final Launch Star and collect the Power Star.

• Enter Bubble Breeze from the Kitchen map at 19 Power Stars.
• Stay on land until the bubble tutorial area.
• Aim opposite the desired direction and press A for controlled air bursts.
• Avoid mines and poison, and press Z to leave the bubble at a safe landing point.

Use Boo form and careful camera work in Ghostly Galaxy

Ghostly Galaxy opens at 20 Power Stars, including the required earlier Grand Star progression. In Luigi and the Haunted Mansion, follow the mansion route and collect the Boo Mushroom when it is provided. Boo Mario can pass through certain barriers, but bright light removes the transformation, so do not enter illuminated areas while depending on Boo movement. Make small directional adjustments around corners and reset the camera if the mansion's perspective obscures the next Launch Star.

A Very Spooky Sprint is a route-learning challenge against a Boo. On the first attempt, learn the Pull Star sequence and the positions of bones and mines instead of taking unnecessary risks. Matter Splatter Mansion is a hidden star mission entered through the appropriate route from the mansion sequence. Its solid ground moves through dark space, so stop on stable surfaces, identify the next section, and then jump. Star Bits can stun eligible enemies, but they do not replace careful platforming.

• Avoid bright light while relying on Boo form.
• Learn the Pull Star route before attempting to win the sprint quickly.
• Pause on stable ground during Matter Splatter Mansion.
• Use C to restore a useful camera angle after a perspective change.

Defeat Bouldergeist and repeat the fight for the Daredevil Star

In Beware of Bouldergeist, spin into a Bomb Boo to grab it, then swing and throw it at Bouldergeist. Bomb Boo explosions break the boss's rocky armor and expose the vulnerable body. During the first phase, avoid the thrown rocks and the columns that rise from the ground. When shadows appear beneath Mario, move away before the columns erupt.

After the armor is broken, Bouldergeist returns with hands and more aggressive attacks. Continue collecting Bomb Boos and target the main body. The hands can interfere with movement, but do not spend every opening attacking them; the objective remains damaging Bouldergeist's body. Use the open portion of the arena, wait for a safe Bomb Boo, and repeat the process until the Power Star appears.

Bouldergeist's Daredevil Run uses the same boss pattern with only one health point. Treat it as a survival challenge rather than a speed run. Keep distance, avoid the rock columns, and throw Bomb Boos only when Mario has a clear escape route. A failed attempt restarts the mission, so separate mistakes in the approach from mistakes in the boss arena and adjust one part at a time.

• Grab Bomb Boos with a spin.
• Throw Bomb Boos at Bouldergeist's body.
• Avoid rock throws, rising columns, and hand attacks.
• In the Daredevil Run, prioritize survival over fast damage.

Raise Buoy Base and finish Bowser Jr.'s Kitchen battle

Buoy Base Galaxy requires 30 Power Stars, and Sunken Treasure must be complete. In The Floating Fortress, dive beneath the tower and lure a Torpedo Ted into the glass cage around the underwater weight. Once the cage breaks, the tower rises. Surface and climb the exposed structure using wall jumps, platforms, and the machinery around the tower. Stand on the valves and spin to disable Water Shooters. Follow the moving-platform route, collect the five Star Chips, and use the resulting Pull Stars to reach the upper sphere. Spin the screw at the top, enter the revealed water, and collect the Power Star.

The Secret of Buoy Base is the hidden Green Star mission. Enter the mission route, use a Torpedo Ted to break the glass cage around the underwater pipe, and follow the pipe to the underside walkway. Let a Bullet Bill follow Mario to the cage containing the Green Star. Stay on the walkway and re-enter the pipe if you fall into the water.

Bowser Jr.'s Airship Armada opens at 23 Power Stars. Cross the airships using cannons, poles, platforms, and the moving section activated by a spin lever. Avoid lasers, Bullet Bills, and fireballs, and use Star Bits to clear spiders or release useful coins when necessary. In the boss arena, use green Koopa Shells against Bowser Jr.'s airship. Three hits cause the fireball phase; land two additional shell hits afterward for five total. Collect the Grand Star to complete the Kitchen's boss route and unlock the Bedroom dome.

• Reach 30 Power Stars and complete Sunken Treasure before entering Buoy Base.
• Use a Torpedo Ted to break the weight's glass cage.
• Use the pipe and a Bullet Bill to reach Buoy Base's hidden Green Star.
• Hit Bowser Jr.'s airship three times before the fireballs and twice afterward.
• Collect the Grand Star after Sinking the Airships.

Open the Bedroom and select an available galaxy

After defeating Bowser Jr. in Bowser Jr.'s Airship Armada, collect the Grand Star and return to the Comet Observatory. The Bedroom will be active, and its central Pull Star leads to the galaxy-selection screen. Gusty Garden Galaxy requires 24 Power Stars, Freezeflame Galaxy requires 26, and Dusty Dune Galaxy requires 29. Bowser's Dark Matter Plant becomes available at 33 Power Stars once the Bedroom is active. If a galaxy is locked, clear another available mission and return after the displayed requirement is met; there is no hidden switch inside the dome that replaces the star requirement.

The three ordinary galaxies do not have to be completed in a fixed order. Gusty Garden is a good introduction to wind and changing gravity, Freezeflame combines ice and lava mechanics, and Dusty Dune uses tornadoes, quicksand and rotating structures. Bowser's Dark Matter Plant is a separate one-mission boss galaxy and should be treated as a story objective rather than another ordinary three-star galaxy.

• Confirm that the Bedroom entrance and its central Pull Star are active.
• Check the displayed Power Star total before attempting a locked galaxy.
• Use the Star List to separate ordinary missions from comet, hidden, Hungry Luma and Green Star content.

Read local gravity before every jump

A planetoid's surface is Mario's current floor, even when the camera makes it look like a wall or ceiling. Before leaving a Launch Star, Pull Star or gravity transition, locate the surface that will catch Mario. After landing, release the Control Stick briefly and let Mario settle before choosing the next direction.

Use the camera reset when the horizon becomes misleading. Short jumps are safer than immediately using a long jump across a gravity boundary. A midair spin can extend a jump slightly, stun many enemies and help correct a landing, but it cannot rescue a jump aimed at the wrong face of a planetoid. When a platform rotates or the camera swings around a spherical planet, wait for a clear view of the landing zone before moving.

• Identify the receiving surface before launching to another planet.
• Reset the camera before a small or partly hidden landing.
• Re-center Mario after a gravity change instead of continuing to run blindly.

Clear Gusty Garden's wind and gravity missions

In Bunnies in the Wind, follow the opening route through the grassy starting planet and use Floaty Fluff to ride the wind. Spin while airborne to glide with the gusts, but release the Control Stick when approaching a small platform so Mario does not drift past it. When the Star Bunny begins running, use long jumps to cut across corners rather than following its entire loop.

The Dirty Tricks of Major Burrows is the galaxy's boss mission. Major Burrows moves underground and leaves a visible trail. Ground Pound near his route to bring him up, then spin him while he is exposed. After the first hit, follow him and repeat the same method. In the Daredevil version, the pattern is unchanged, but one mistake ends the attempt, so use controlled movement instead of chasing blindly through hazards.

Gusty Garden's Gravity Scramble is useful practice for changing local down directions. In Purple Coins on the Puzzle Cube, check each face before jumping and avoid crossing the cube while the camera is rotating. The Golden Chomp hidden star uses Gravity Scramble: collect the Question Coins to create a Rainbow Star, then use Rainbow Mario to destroy the Golden Chomp.

• Use Floaty Fluff and midair spins to cross the wind sections.
• Defeat Major Burrows by ground-pounding his route and spinning him when exposed.
• Return to Gravity Scramble for the Golden Chomp hidden star when that mission is available.

Handle Freezeflame's ice, fire and vertical routes

In The Frozen Peak of Baron Brrr, avoid the freezing water and use the Ice Flower created by the Question Coin to climb the mountain. Baron Brrr attacks by jumping and creating damaging ice waves. Jump over each wave, then spin into Baron Brrr while he is exposed. Repeat the hit pattern three times, keeping enough distance to see the next wave.

Freezeflame's Blistering Core uses Fire Flowers to light torches and activate mechanisms. Identify the torches before taking the power-up, then use the shortest safe route between them. In Hot and Cold Collide, use the valves to open passages between the hot and cold halves. Fire Mario lights torches on the cold side, while Ice Mario freezes lava to create temporary platforms. If a form expires, return to the nearest matching flower instead of attempting a hazardous jump without it.

Ice changes Mario's momentum. Use short Control Stick taps, begin jumps before the edge of a slope and avoid landing near a drop. When using fountains or wall jumps to gain height, face the target before jumping and use a spin near the top of the arc to adjust the landing.

• Use Ice Mario and Fire Mario only after planning the route they enable.
• Jump over Baron Brrr's ice wave and spin into him during the opening.
• Use short directional taps on ice and allow room for sliding.

Cross Dusty Dune's sand and rotating structures

In Soaring on the Desert Winds, enter tornadoes from a controlled approach and spin inside them to gain height. Reach the pipe on the far side without touching quicksand. In the underground section, yellow moving sand pushes Mario backward, while deep quicksand is lethal. Use blocks and stable ledges instead of dropping into the deepest sand. At the wheel section, each wheel has its own gravity, so wait for Mario to land fully before jumping to the next one.

Blasting through the Sand and its Speedy Comet version use the maze planet and moving structures. Watch one movement cycle before crossing. When the route changes direction around the planet, stop on a stable surface and reset the camera rather than assuming the screen's upward direction is still Mario's floor.

For Bullet Bill on Your Back, follow the opening route to the small planet and Ground Pound the wooden stump to reveal a Launch Star. On the next planet, activate the ground-pound switch to raise the tower. Keep a Bullet Bill following Mario and lead it to the glass cage containing the Power Star. Position Mario so the Bullet Bill strikes the cage rather than Mario.

Dusty Dune's pyramid Green Star uses a Hungry Luma. Feed it 20 Star Bits, enter the pyramid planet and collect all five Silver Stars. Activate the red bar to shift the sand, avoid standing between rising sand and walls, and keep moving as the level changes. Once all five Silver Stars are collected, the sand drains and the Green Star appears. This is separate from the ordinary Dusty Dune missions.

• Use tornadoes for height and avoid lethal deep quicksand.
• Observe moving towers and wheels before crossing them.
• Feed the Dusty Dune Hungry Luma 20 Star Bits for the pyramid Green Star.

Enter Bowser's Dark Matter Plant at 33 Stars

Once the Bedroom is open and the file has at least 33 Power Stars, use the Bedroom's Pull Star and select Bowser's Dark Matter Plant. The galaxy contains one mission, Darkness on the Horizon. Dark matter is lethal: touching it costs a life immediately, so treat every purple-black gap and hole as an instant-death boundary rather than a surface that can be crossed.

The mission begins with yellow moving platforms over dark matter. Ride them across the opening and continue to the rotating platforms. Defeat or avoid the Dry Bones, then enter the side-view gravity chamber. The arrows on the walls show the next direction of gravity. Use the L-shaped platforms deliberately: stand on the portion that will become the floor when gravity shifts, then move only after Mario has settled.

Climb the pole after the first gravity chamber. Ahead are platforms with moving holes and dark-matter gaps. Wait for the nearest platform to approach, use the safer middle route when it is available, and jump only after the platform has a broad solid section beneath Mario. Continue onto the yellow moving platforms and the second side-view gravity section. The holes in the platforms are lethal, not ordinary gaps that can be crossed with a late spin.

In the second chamber, watch the arrows and move Mario to the side that will remain solid after each gravity change. The plus-shaped platform requires especially careful positioning: follow the direction of gravity and shift Mario toward the next solid arm before the platform turns. Do not run continuously across it. After this section, ride the green lift upward. If Mario falls, the mission restarts from the latest checkpoint when one is available; otherwise, conserve lives by pausing before each gravity transition rather than repeating the same blind jump.

• Reach Bowser's Dark Matter Plant with 33 Power Stars and the Bedroom active.
• Treat all dark matter and platform holes as lethal.
• Use wall arrows to predict gravity changes.
• Wait for moving platforms to expose a broad solid landing area.
• Use the checkpoint after the first gravity section as a recovery point.

Climb the staircase and prepare for Bowser

At the top of the lift, land on the tiled platform and break the crystal containing the Lumas. Freeing them creates the staircase to the boss platform. A second crystal contains a Life Mushroom; break it with a spin and take the extra health before entering the circular arena. This crystal is preparation and recovery support, not cover during the fight. Once Mario steps onto the circular platform, Bowser carries him to the transparent planetoid above.

Before attacking, identify the blue covering panels and leave room to jump. Bowser's fireballs travel around the planet, so do not remain on one side after he breathes fire. His shock waves spread across the surface; jump over them, and be ready for multiple waves in succession. He also uses a dark spinning attack of his own. If he spins toward Mario, jump away or counter with a spin when there is enough room; a mistimed close-range spin can cause damage.

• Break the Luma crystal to create the staircase.
• Take the Life Mushroom from the nearby crystal if you need extra health.
• Enter the arena with a clear view of the blue panels.
• Keep moving when fireballs begin circling the planet.

Defeat Bowser and claim the fifth story Grand Star

The attack method is the same basic pattern used in the earlier Bowser battle. Stand near a blue covering panel and make Bowser jump toward Mario. Move away at the last moment so his ground pound lands on the blue panel. The covering breaks, exposing the lava beneath it, and Bowser burns his tail when he lands there.

Bowser then runs around the planet with his tail exposed. Wait until he turns toward Mario, spin into the burning tail, and immediately spin again when he is on his back. The timing is more important than chasing him: stay near the center of the planet, watch his route and attack the tail only when the turn is clear. After each successful flip, Bowser moves faster. On the final cycle, he must be flipped and struck twice before he is defeated.

After the first hit, expect more fireballs, additional shock waves and repeated dark spins. Jump over the shock waves rather than trying to outrun them, and use the arena's open space to avoid fireballs. The blue panels are the correct setup for damage; the Life Mushroom crystal before the arena cannot be used as a shield once the fight begins.

Collect the Grand Star after Bowser is defeated. This is the fifth required story Grand Star: Gateway Galaxy provides the first, the Observatory's earlier boss galaxies provide the next three, and Darkness on the Horizon provides the fifth. Bowser's Dark Matter Plant is not Bowser's Galaxy Reactor. The latter is a separate final galaxy that becomes available later after the required Grand Star progression and Power Star threshold; its mission is The Fate of the Universe.

• Lure Bowser's ground pound onto a blue covering panel.
• Spin the exposed burning tail when Bowser turns toward Mario.
• Spin again when Bowser is on his back.
• Repeat the pattern through the faster final cycle and land the final extra hit.
• Collect Darkness on the Horizon's Grand Star.

Keep Spring Mario in its correct later location

The original Wii Bedroom has no Spring Mushroom, Spring Mario mission or gear-based spring section. Those mechanics belong to Toy Time Galaxy in the Engine Room. When you later reach Bouncing Down Cake Lane, use small steering corrections during each bounce and identify the next platform before Mario leaves the ground. Do not hold the Control Stick continuously through the entire ascent; oversteering is a common cause of missed landings.

• Do not search Gusty Garden, Freezeflame or Dusty Dune for Spring Mario.
• Practice the Spring form later in Toy Time Galaxy.
• Use the Bedroom's gravity, wind, ice, lava and sand missions for this chapter's required training.

Recover from failure and verify the dome's progress

After a missed jump, use the checkpoint if one is available and reattempt the section with a camera reset and a shorter movement. If repeated failures are costing lives, leave the mission and replay an easier cleared stage for coins, Star Bits and extra lives before returning. Do not spend time on locked icons: the displayed thresholds and Grand Star progression determine when the main galaxies appear.

The Dark Matter Plant objective is complete when Bowser is defeated, the Grand Star is collected and the Observatory records the increased total. For the Bedroom's ordinary route, verify that the intended Gusty Garden, Freezeflame and Dusty Dune stars are listed as collected. For broader completion, return later for comet, hidden, Hungry Luma and Green Star missions, and treat Bowser's Galaxy Reactor as the separate final campaign location.

• Confirm the Dark Matter Plant Grand Star appears in the Star List.
• Verify that the Power Star total increased after returning to the Observatory.
• Confirm that the fifth required story Grand Star has been collected.
• Keep later comet, hidden, Hungry Luma and Green Star objectives separate from the required boss mission.
• Do not confuse Bowser's Dark Matter Plant with Bowser's Galaxy Reactor.

Open the Engine Room and follow the separate galaxy requirements

Enter the Engine Room from the Comet Observatory after completing Darkness on the Horizon in Bowser’s Dark Matter Plant and collecting its Grand Star. The dome unlocks at that moment; it does not wait for a 34-Star total. Use the Pull Star in the center of the dome to select its galaxies.

Gold Leaf Galaxy becomes available when the file has 34 Power Stars and Bowser’s Dark Matter Plant is complete. Sea Slide Galaxy becomes available at 36 Power Stars. Toy Time Galaxy becomes available at 40. Bowser Jr.’s Lava Reactor becomes available at 45 and contains the dome’s Grand Star mission. Bonefin Galaxy is separate from the ordinary threshold sequence: reach 55 Power Stars and complete Giant Eel Outbreak in Drip Drop Galaxy. If Bonefin is missing, check the Kitchen’s Hungry Luma galaxy rather than assuming the Engine Room is incomplete.

The Hungry Luma outside the dome can later create Sand Spiral Galaxy when its prerequisites are met and you feed it 1,000 Star Bits. Rolling Gizmo Galaxy belongs to the Trial galaxies, not the Engine Room. Track both separately in the Star List.

• Collect the Grand Star from Bowser’s Dark Matter Plant to open the Engine Room.
• Check 34, 36, 40 and 45 Power Stars for the four threshold-based Engine Room galaxies.
• Reach 55 Power Stars and complete Giant Eel Outbreak before looking for Bonefin Galaxy.
• Track Sand Spiral and Rolling Gizmo separately from the Engine Room’s normal galaxies.

Clear Gold Leaf Galaxy without wasting Bee Mario

In Star Bunnies on the Hunt, speak to the Star Bunnies and search the autumn version of the Honeyhive-style planet for five Blue Star Chips. Use the pond, large tree and raised platforms as landmarks. The level mirrors Honeyhive’s layout, but changes to the terrain and enemy placement can make a familiar route less reliable, so check each branch before committing to a jump.

Cataquack to the Skies uses blue Cataquacks as launch tools. Stand on a line with the target ledge, let the Cataquack charge, then jump over it so its launch sends Mario upward. Avoid striking the animal from the side, because that can leave Mario below the intended platform.

In When It Rains, It Pours, use Bee Mario to cross the elevated route and reach the Undergrunt Gunner. If the aerial path becomes unsafe, use the nearby platforms and the ground-pound switch to raise the staircase. Ground-pound the Gunner’s cockpit three times to reveal the Power Star. After the second hit, its attacks become more dangerous, so land on the platform, reposition and wait for a safe opening rather than attacking immediately.

Cosmic Mario Forest Race and Purple Coins in the Woods are separate challenges. Learn the ordinary route before attempting either one, and plan a continuous path instead of stopping for every Star Bit.

• Find all five Blue Star Chips in Star Bunnies on the Hunt.
• Line up Cataquacks before using them as launch tools.
• Ground-pound the Undergrunt Gunner three times.
• Treat the Cosmic and Purple Coin missions as separate routes.

Handle Sea Slide’s water ring and races

In Going after Guppy, follow Guppy through the eight rings he leaves around the water course. Take a Red Shell from the seabed when possible; it makes swimming faster and helps maintain pace through the longer sections. Use the central islands and stone arches to reorient if Guppy moves out of view, but do not pause so long that the temporary rings disappear.

In Faster Than a Speeding Penguin, race the penguins through the underwater course. Take the Red Shell near the start, use clean lines through the rings and avoid enemies that force Mario into a slow recovery animation. If you throw the shell, do so only when another shell is nearby or when the collision would otherwise cost the race.

The Silver Stars of Sea Slide is an exploration mission. Search the islands, underwater sections and central landform in sections rather than repeatedly crossing the entire ring. Underwater Cosmic Mario Race, Purple Coins by the Seaside and Hurry, He’s Hungry are separate missions. Practice the ordinary water route before attempting the timed race or the coin layout.

• Use a Red Shell for Guppy’s ring challenge when available.
• Keep a clean line through the penguin race.
• Use the islands and central planet as navigation landmarks.
• Practice the water route before attempting Underwater Cosmic Mario Race.

Climb and dismantle Mecha-Bowser in Toy Time

Heavy Metal Mecha-Bowser is a climb-and-destroy mission rather than a conventional boss arena. Follow the Launch Stars to the toy robot, use the pink gravity surfaces and yellow screws to move around its body, and reach the Spring Mushroom near the upper section. Spring Mario is needed to bounce toward the robot’s head while avoiding the Sentry Beam.

At the head, ground-pound the pillar of stone slabs. Continue breaking through the stack until Mecha-Bowser is destroyed and the Gearmos are freed. On moving train sections, avoid unnecessary jumps; preserve your position and wait for the next safe platform if the train’s movement is difficult to read.

Mario Meets Mario uses moving platforms and Launch Stars. In Bouncing Down Cake Lane, use Spring Mario to cross the dessert platforms and reach the Undergrunt Gunner. Ground-pound the cannon three times. After the second hit, its electric attack makes careless landings dangerous, so bounce only after the hazard has cleared.

Fast Foes of Toy Time accelerates enemies and moving hazards. Reduce detours and watch conveyor timing. Luigi’s Purple Coins and The Flipswitch Chain are separate challenge missions and should be attempted after the ordinary routes are familiar.

• Use gravity surfaces, screws and Spring Mario to reach Mecha-Bowser’s head.
• Ground-pound through the stone slabs to destroy the robot.
• Ground-pound the Toy Time Undergrunt Gunner three times.
• Learn the ordinary route before attempting Fast Foes or Luigi’s Purple Coins.

Defeat Kingfin with Red Shells

After reaching 55 Power Stars and completing Giant Eel Outbreak in Drip Drop Galaxy, enter Bonefin Galaxy and start Kingfin’s Fearsome Waters. Launch from the starting Starshroom to Kingfin’s enclosed water planet, then collect Red Shells from the arena.

Kingfin’s head is the target. Wait for the skeletal shark to approach in a fairly direct line, throw a Red Shell into its path and swim away immediately. Do not chase while Kingfin is turning. Circle the outside of the arena when you need room, create vertical distance from the Fish Bones and reorient the camera before attempting the next throw.

The shell surrounding the arena can trap Mario if he attacks from the wrong side. Keep an escape route open and collect another Red Shell before committing to an attack. Repeat the attack-and-retreat pattern until Kingfin is defeated, then collect the Power Star.

• Unlock Bonefin with 55 Power Stars and Giant Eel Outbreak.
• Use Red Shells against Kingfin.
• Aim for Kingfin’s head during a direct approach.
• Retreat after every hit instead of following the boss while it turns.

Finish Bowser Jr.’s Lava Reactor

At 45 Power Stars, enter Bowser Jr.’s Lava Reactor from the Engine Room. On the opening planet, follow the path toward the Bullet Bill launcher. Lead a Bullet Bill around the planet and into the glass cage holding the Launch Star. Clear nearby Goombas first if they are interfering with the Bullet Bill’s route.

The next area contains green platforms that sink into the lava while Mario stands on them. Keep moving and use short jumps to reduce the time spent on any one platform. Two enemies fire coconuts. Spin the coconuts back at them to defeat them and reveal the next Launch Star. A Life Mushroom is available in the approach, but do not risk the route for it if the platforms are already collapsing.

The final planet repeats the sinking-platform hazard around King Kaliente. Reflect his coconuts with the Spin. The rematch requires more careful timing than the earlier fight because the available platforms sink and the boss attacks more aggressively. Stand near the center when possible, watch the platform beneath Mario and attack only after the projectile has a clear return path. If a platform begins to disappear, jump and spin to buy time while it rises again.

After the final successful counterattack, collect the Grand Star. This completes the Engine Room’s boss galaxy and advances the Observatory’s remaining story progression, although it is not a prerequisite for entering Bowser’s Galaxy Reactor if the separate 60-Star requirement has already been met.

• Enter Bowser Jr.’s Lava Reactor at 45 Power Stars.
• Guide a Bullet Bill into the Launch Star cage.
• Use jumps and spins to survive the sinking platforms.
• Reflect King Kaliente’s coconuts with the Spin.
• Collect the Grand Star after the rematch.

Check for an observatory Hungry Luma

After the required mission milestone has been reached, return to the Comet Observatory and inspect the exterior path near the relevant dome or area. A large Hungry Luma will be waiting there. The location is tied to the galaxy or dome, so do not assume that every Hungry Luma appears in the same place or immediately after any Grand Star.

The seven observatory Hungry Lumas are associated with these areas: Sweet Sweet Galaxy near the Terrace, Sling Pod Galaxy near the Fountain, Drip Drop Galaxy near the Kitchen, Bigmouth Galaxy near the Bedroom, Sand Spiral Galaxy near the Engine Room, Boo's Boneyard Galaxy near the Gate, and Snow Cap Galaxy near the Garden. If one is absent, continue the relevant dome missions and story progression rather than repeatedly searching the same platform.

• Return to the Observatory after a relevant mission milestone.
• Search the exterior path around the named dome or area.
• Confirm the galaxy's name after feeding the Luma and opening the galaxy-selection route.

Save the correct number of Star Bits

The feeding costs for the original Wii release are: Sweet Sweet Galaxy, 400 Star Bits; Sling Pod Galaxy, 400; Drip Drop Galaxy, 600; Bigmouth Galaxy, 800; Sand Spiral Galaxy, 1,000; Boo's Boneyard Galaxy, 1,200; and Snow Cap Galaxy, 1,600. These are observatory Hungry Lumas. Sea Slide Galaxy is a normal Engine Room galaxy and is not part of this list.

Point the Star Pointer at the Hungry Luma and press B to shoot Star Bits into it. The game displays the remaining requirement while you feed it, so check the counter before spending a large reserve. When the requirement is met, the Luma transforms and the new galaxy becomes available. Star Bits used for feeding are spent from your saved total, so avoid unnecessary shots or optional purchases when you are close to a higher-cost unlock.

A practical order is to unlock the 400- and 600-bit galaxies first, then work upward. The cheaper stages give useful practice with moving platforms, Sling Pods, and swimming before the more specialized one-star challenges.

• Confirm the displayed cost before feeding.
• Prioritize the 400-, 600-, and 800-bit unlocks if you want early bonus stars.
• Reserve enough Star Bits for the next Hungry Luma instead of firing them indiscriminately at enemies.

Farm Star Bits safely

Replay a cleared, familiar mission with accessible Star Bit crystals and low-risk enemy groups. Collect bits with the Star Pointer while moving normally; do not detour across dangerous gaps for a single item. Crystals, visible trails, and enemies defeated with a spin are dependable sources during ordinary missions.

Finish the mission and return to the Observatory before attempting another feeding. This keeps the farming route simple and lets you confirm your saved total. A mission that contains a dense early group of crystals is usually better than a difficult comet or Purple Coin mission, because the goal is a predictable reserve rather than a fast completion time.

If another player is available, Co-Star mode can help collect Star Bits and stun ordinary enemies, but it does not remove the need to finish the mission safely. Do not rely on Co-Star assistance for the precise movement sections inside the Hungry Luma galaxies.

• Use a cleared mission with a safe opening route.
• Collect crystals and pointer-accessible groups before taking risky detours.
• Return to the Observatory and verify the total before feeding a Luma.

Complete the Hungry Luma galaxies

Treat each unlocked galaxy as an independent one-Star challenge. Sweet Sweet Galaxy is a moving-platform course; watch the direction of conveyor surfaces and make short, deliberate jumps. Sling Pod Galaxy uses web-like Sling Pods, so pull the pointer back, aim at the next safe surface, and release only after checking where Mario will land.

Drip Drop Galaxy is an underwater fight against three giant eels. Carry a Koopa Shell, use it to strike the eels, and monitor Mario's air supply. Bigmouth Galaxy centers on finding the correct bait for the penguin-like creature, while Sand Spiral Galaxy uses a rolling-ball course. Boo's Boneyard Galaxy requires Boo Mario to race the Spooky Speedster through a vertical maze; use the Boo form's ability to pass through barriers and activate Question Coins when their fans provide a useful downward push.

Snow Cap Galaxy is a timed search for three Star Bunnies. Use the Star Pointer to clear snow, activate the switches that reveal the Fire Flower, melt the snowmen, and use the shell where necessary. These stages are compact but not automatically easy; learn the route and the required form before trying to rush.

• Collect the Power Star at the end of each unlocked galaxy.
• Preserve the required form until the next obstacle has been passed.
• Re-enter a failed mission and repeat the same route instead of changing several actions at once.

Collect the three Green Power Stars

The Planet of Trials is not unlocked by feeding an observatory Hungry Luma. First collect three specific Green Power Stars. In Battlerock Galaxy, complete the Luigi rescue mission by luring Bullet Bills into the cage beneath the saucer. In Buoy Base Galaxy, enter the underwater cage area through the pipe and lure a Torpedo Ted into the cage containing the Green Star. In Dusty Dune Galaxy, feed the in-galaxy Hungry Luma during the appropriate mission, enter the pyramid planet, and collect five Silver Stars while controlling the moving sand; the Green Star appears after the sand drains.

These three Green Stars can be collected in any order. They are separate from ordinary yellow Power Stars and are recorded on the Star List. Once all three are collected, a green Launch Star appears on the Observatory near the Garage and carries Mario to the Planet of Trials.

• Battlerock Galaxy: rescue Luigi from the saucer cage.
• Buoy Base Galaxy: use a Torpedo Ted to break the Green Star cage.
• Dusty Dune Galaxy: collect the five Silver Stars in the pyramid and claim the Green Power Star.
• Use the green Launch Star near the Garage after all three are collected.

Clear the three Trial Galaxies

On the Planet of Trials, speak to each Green Luma to activate a Launch Star. Rolling Gizmo Galaxy is a rolling-ball precision course. Keep the ball centered on narrow tracks, make small Wii Remote tilts, and slow down before bends rather than correcting after the ball has already reached the edge.

Loopdeeswoop Galaxy is a Ray-surfing time course. Make broad, early turns and avoid sharp last-second corrections near spikes and tight loops. Bubble Blast Galaxy places Mario in a bubble maze with electric hazards. Use controlled pointer movements, leave room to brake, and line up the next opening before entering a narrow passage.

Each Trial Galaxy contains one Power Star. These stars count toward 120, but the Trial Galaxies can be postponed until the main campaign is complete.

• Activate all three Trial Galaxy Launch Stars on the Planet of Trials.
• Collect the Power Star in Rolling Gizmo Galaxy.
• Collect the Power Star in Loopdeeswoop Galaxy.
• Collect the Power Star in Bubble Blast Galaxy.

Read the comet icon before entering a galaxy

When a Prankster Comet is active, its colored icon appears beside a major galaxy on the Comet Observatory map. Select the galaxy and read the mission name before launching. In the original Wii game, entering a galaxy with an active comet sends Mario into that comet mission instead of offering the ordinary mission list. After the comet Star is collected, the normal mission selection returns and the comet Star can be selected again when that comet is active.

The first four comet types begin appearing after Mario has collected 13 Power Stars. Red indicates Speedy, blue indicates Cosmic, white indicates Daredevil and yellow indicates Fast-Foe. Purple Comets are separate postgame missions and do not appear until The Fate of the Universe has been completed.

Use Polari, the black Luma at the Observatory, to inspect where active comets are located. When the Comet Luma is available near the Terrace, feed it 20 Star Bits to shuffle the available comet locations. The Comet Luma does not directly complete a mission; it changes which available comet is orbiting a galaxy.

• Check the galaxy map for the comet color and mission name.
• Use Polari to find an active comet.
• Use the Comet Luma only when you want to shuffle comet locations and have 20 Star Bits available.
• Remember that a failed comet attempt restarts the mission from the beginning rather than returning Mario to a normal checkpoint.

Handle Speedy Comet missions as route tests

A red Speedy Comet places a time limit on a previously completed mission. The route and objective are based on the original mission, although some hazards or enemy arrangements can change. Before attempting the comet, replay the ordinary mission and identify the required planets, switches, Launch Stars, Pull Stars and boss route.

On the timed attempt, ignore optional Star Bits, coins and enemies unless they are directly along the route or provide a necessary opening. Keep moving through familiar sections, use long jumps across safe gaps and take Launch Stars as soon as the route requires them. Some timed missions include clocks that extend the limit; collect them only when doing so does not create a dangerous detour.

If Mario falls or reaches a difficult section with too little time remaining, restart rather than forcing a recovery. Improve the earliest section where time was lost, then repeat the route consistently.

• Complete the ordinary version first whenever you need to learn the layout.
• Memorize the order of planets and required launch devices.
• Skip optional detours unless they save time or are necessary.
• Restart promptly after a failed route instead of trying to recover from a major fall.

Race the Cosmic opponent without chasing blindly

A blue Cosmic Comet creates a race against a cosmic duplicate of the current character. As Mario, you race Cosmic Mario; as Luigi, you race Cosmic Luigi. The opponent follows a fixed course toward the Power Star, so clean movement and safe landings matter more than trying to interfere with the rival.

On the first attempt, watch the duplicate's route and note where it uses long jumps, Launch Stars or shortcuts. On the next attempt, take the same safe route with less hesitation. Use long jumps on broad platforms, but do not choose a shortcut unless you have already confirmed that Mario can land safely.

When the rival is nearby, continue facing the next platform. Do not turn around to chase or collide with it. A missed jump costs more time than allowing the rival to gain a small lead. If the camera becomes disorienting, reset it before the next jump rather than correcting the view during the leap.

• Observe the opponent's opening route before committing to risky shortcuts.
• Prioritize a safe landing over a slightly faster jump.
• Use Launch Stars promptly and keep moving forward.
• Repeat the fixed route instead of improvising after every mistake.

Treat Daredevil and Fast-Foe Comets as pattern checks

A white Daredevil Comet reduces Mario to one health point for the mission. Any damaging hit ends the attempt. Many Daredevil missions are shortened boss rematches, so replay the ordinary boss fight first and identify the attack pattern, safe position and damage opening. Do not collect unnecessary risks or attempt a shortcut merely to save a few seconds.

A yellow Fast-Foe Comet makes enemies and selected moving hazards operate at twice their normal speed. Thwomps, Tox Boxes and certain moving platforms can become difficult to read because their cycles are accelerated. Keep extra distance from moving enemies, wait for the faster cycle to pass and use a spin or Star Bit when an interruption is safe and useful.

Do not confuse survival missions with timed missions. Daredevil attempts reward patience, while Fast-Foe attempts require adjusting to accelerated patterns rather than relying on normal enemy timing.

• For Daredevil missions, identify every unavoidable hazard before the serious attempt.
• Use the ordinary boss fight to learn the safe damage window.
• For Fast-Foe missions, watch one complete accelerated cycle before moving.
• Avoid unnecessary attacks and edge jumps.

Unlock and enter Purple Comet missions

Purple Comets become available only after Mario completes The Fate of the Universe in Bowser's Galaxy Reactor. That is the final story mission of the initial campaign. After the ending, Purple Comets begin appearing in the major galaxies as their prerequisites are met. Each major galaxy has a Purple Comet mission, while small one-star galaxies do not use the same comet structure.

A Purple Comet mission requires Mario to collect 100 Purple Coins. Some stages contain exactly 100 coins; others place more than 100 along the route to give limited flexibility. Some missions are open collection routes, while others place the coins in a timed section or across moving platforms. Read the mission title and inspect the opening area before choosing a route.

The Purple Coin Star is awarded after the required total has been collected and Mario reaches the mission's finish condition. If the mission has a timer, plan around the timer from the beginning instead of assuming there will be time to return for missed groups.

• Complete The Fate of the Universe before expecting Purple Comets.
• Check that the purple comet is visible over the intended galaxy.
• Collect at least 100 Purple Coins unless the mission's displayed objective says otherwise.
• Confirm that the Purple Coin Star is recorded after returning to the Observatory.

Build a repeatable route for Purple Coin runs

On the first attempt, map the coin groups by planet, landmark and movement section. Identify the point of no return, the direction of moving platforms and the platforms where Mario can safely stop. Do not begin by trying to collect everything at maximum speed; learn which groups can be taken in one sweep and which require a deliberate approach.

For timed missions, collect coins in a consistent circuit and avoid returning for a missed group unless the route clearly allows it. For non-timed missions, slow down before narrow platforms and use the camera reset before blind jumps. Approach dangerous coins from the direction that leaves Mario on solid ground, not merely from the shortest distance.

If the counter is short near the end, remember which section was skipped and restart with that section corrected. Changing the entire route usually creates new mistakes. Purple Coin missions restart after a life loss, so route memory is more valuable than repeated improvisation.

• Divide the stage into coin groups and movement sections.
• Learn the route before attempting a perfect run.
• Use conservative jumps near the final groups.
• Restart with one correction when the counter is short.

Confirm comet progress and plan the 120-Star route

After collecting a comet Star, check the galaxy's mission list and the overall Power Star total. A visited galaxy is not necessarily complete: it may still have a normal Star, Hidden Star, Luigi Star, comet Star or Purple Coin Star remaining. Use the mission list to distinguish collected Stars from missions that were merely entered.

The first four comet types can be collected during the campaign as they appear. Purple Comets are postgame content and form part of the route toward 120 Power Stars. Clear straightforward Purple Coin layouts first, then return to timed, moving-platform and hazard-heavy missions after you have learned their routes.

For a reliable completion plan, finish every listed comet mission rather than assuming that an active comet has been counted. When the total is close to 120, compare the galaxy mission lists with the Power Star total and investigate any galaxy that still lacks a completed comet or Purple Coin entry.

• The comet Star is visible as collected in the galaxy's mission list.
• The overall Power Star total increases after a successful completion.
• The galaxy map no longer shows an uncompleted comet objective for that mission.
• For the 120-Star goal, every remaining comet and Purple Coin mission is completed and recorded.

1. Confirm the stronghold and enter at the correct Power Star total

Bowser Jr.'s Robot Reactor becomes available at 8 Power Stars and contains Megaleg's Moon. Bowser Jr.'s Airship Armada becomes available at 23 Power Stars and contains Sinking the Airships. Bowser Jr.'s Lava Reactor becomes available at 45 Power Stars and contains King Kaliente's Spicy Return. These are single-mission boss galaxies rather than ordinary galaxies with several regular missions.

Select the correct galaxy from the dome's pull-star map and check the mission name before launching. The Grand Star earned from each stronghold is required for Observatory progression, but do not assume that clearing one stronghold alone opens every later area. Continue using the Observatory's available galaxy list and Power Star total to determine what can be entered next.

• Robot Reactor: 8 Power Stars; Megaleg's Moon.
• Airship Armada: 23 Power Stars; Sinking the Airships.
• Lava Reactor: 45 Power Stars; King Kaliente's Spicy Return.

2. Reach Megaleg's head and open the first cage

In Megaleg's Moon, move around the starting planet until you find the Bullet Bill cannons. Let a Bullet Bill lock onto Mario, then run behind the glass enclosure containing the Launch Star. Move away before the projectile reaches you so it crashes into the enclosure. If it misses, return to the cannons and repeat; do not try to break the glass with a spin.

After launching to Megaleg, wait for a leg to lower and use its ramp to climb upward. Follow the route over the robot's surface, avoiding the Bullet Bills and rotating gears. Keep moving across the curved metal paths, and reset the camera before narrow jumps if the robot's shape makes the landing difficult.

At the top, guide a Bullet Bill into the first metal barrier around the Grand Star. The impact causes a rotating gate to appear. Use one Bullet Bill to break a section of that gate, then immediately lead another Bullet Bill through the opening before it closes. Run in the gate's direction of rotation rather than waiting in the center. The second projectile must reach the Grand Star's glass enclosure; once it breaks, collect the Grand Star.

• Use a homing Bullet Bill to break the starting Launch Star cage.
• Climb a lowered Megaleg leg and cross the gears carefully.
• Break the first top barrier, then guide another Bullet Bill through the rotating gate.
• Collect the Grand Star after the glass enclosure breaks.

3. Cross the Airship Armada without taking unnecessary risks

On Sinking the Airships, clear the opening ship and use the cannon at its far end to travel between the airships. Aim for the next ship or its pole as indicated by the route. Continue across the decks, avoiding electrical enemies and narrow edges. One ship contains a Lever Switch; activate it to start the moving platform needed to reach the later section and final airship.

A Hungry Luma route and other side paths can provide supplies, but they are not required for the main objective. Use the direct cannon route if you are low on health. When a Wiggler or another enemy blocks a narrow deck, jump over it or spin it away from the edge instead of beginning a prolonged fight beside a drop.

• Use the cannons to move from ship to ship.
• Activate the Lever Switch before boarding the moving platform.
• Keep landings centered and avoid fighting near the deck edges.

4. Defeat Bowser Jr.'s airship with Koopa shells

The final Airship Armada deck contains Koopas and Bowser Jr.'s flying machine. Jump on a Koopa to stun it, pick up its shell, and throw the shell at the airship. This is the required damage method; Mario's spin does not damage the machine.

After throwing a shell, move to a broad section of the deck and watch the counterattack. The ship may fire groups of Bullet Bills, and its position can change, making the next throw less direct. Reposition the camera so Mario, the Koopa, and the ship are visible before committing to a throw. Somersault or run around the incoming projectiles, then wait for another Koopa instead of chasing one toward the edge.

Repeat the shell attack until the airship is defeated. Take one clean shot per opening, then retreat and reset your position. When the Grand Star appears, collect it to complete the mission.

• Stun a Koopa by jumping on it.
• Pick up and throw the shell at Bowser Jr.'s airship.
• Evade the Bullet Bills and reposition before the next throw.
• Collect the Grand Star after the airship is defeated.

5. Cross Lava Reactor's sinking platforms

In King Kaliente's Spicy Return, find the Bullet Bill cannon on the starting planet and lure a Bullet Bill around the planet to the Launch Star cage. Keep the projectile behind Mario as you pass around the curve, then move aside so it hits the cage. A long jump can shorten the route, but it is safer to keep the Bullet Bill's path controlled rather than attempting an uncertain shortcut.

The next area uses green platforms that sink while Mario stands on them. Move forward with short jumps and avoid remaining on one platform longer than necessary. If you need extra time, jump away before the platform descends too far. Reach the enemies that launch green coconuts and spin the coconuts back at them. Defeating them reveals the Launch Star to King Kaliente's arena.

• Lure a Bullet Bill around the starting planet to the Launch Star cage.
• Use short jumps across the sinking green platforms.
• Reflect the enemies' coconuts with a spin to reveal the next Launch Star.

6. Defeat King Kaliente and finish the stronghold

King Kaliente repeats the coconut-reflection pattern from his earlier battle, but the arena's sinking platforms make positioning more important. Stay near the center of a platform and face the boss while watching for a green coconut. Spin as it reaches Mario to send it back. Fireballs cannot be reflected with this technique, so jump or move around them instead.

After a successful reflection, be ready for the coconut to return during the exchange. Do not chase the boss across unstable ground; survive the fireball pattern, wait for the next coconut, and use the opening created by a successful hit. If Mario is standing on a platform that is dropping, jump to another platform or use a somersault and spin to buy time while the route changes.

Repeat the reflection cycle until King Kaliente is defeated. Collect the Grand Star immediately after the battle. The mission is complete when the star is recorded and the game returns you to the Observatory.

• Reflect green coconuts into King Kaliente.
• Jump around fireballs instead of trying to spin them away.
• Keep moving between sinking platforms without pursuing risky angles.
• Collect the Grand Star and verify the mission is marked complete.

Check the file total and identify the real final-access requirement

Return to the Comet Observatory and check the Power Star total on the file you are using. You do not need all 120 Power Stars before the first final mission. Your immediate target is 60 Power Stars, followed by completion of Darkness on the Horizon in Bowser’s Dark Matter Plant.

The Observatory normally advances through Grand Stars in this order: Grand Star Rescue in Gateway Galaxy, Megaleg’s Moon in Bowser Jr.’s Robot Reactor, The Fiery Stronghold in Bowser’s Star Reactor, Sinking the Airships in Bowser Jr.’s Airship Armada, Darkness on the Horizon in Bowser’s Dark Matter Plant, and King Kaliente’s Spicy Return in Bowser Jr.’s Lava Reactor. The first five establish the main Observatory route through the Bedroom. The sixth opens the Engine Room, but it is not necessary for the first Bowser ending if you already have 60 Power Stars and have completed Darkness on the Horizon.

Do not treat the fifth Grand Star as an additional star-count requirement beyond the mission itself. The direct final-access check is 60 Power Stars and completion of Darkness on the Horizon. The earlier Grand Stars are still important because they open the domes and lead you to that mission in normal progression.

The Grand Star from The Fate of the Universe is the seventh Grand Star and is awarded by the final mission itself. You therefore cannot, and do not need to, collect all seven before entering Bowser’s Galaxy Reactor.

• The active file has at least 60 Power Stars.
• Darkness on the Horizon is complete.
• The earlier Grand-Star missions have opened the route through the Bedroom.
• Do not add Bowser Jr.’s Lava Reactor as a mandatory first-ending requirement.
• Remember that The Fate of the Universe awards the seventh Grand Star.

Use Polari and the Star List to plan unfinished missions

Speak with Polari, the dark-colored Luma who provides the Observatory map. You can talk to him from a dome or from the Observatory’s central area. On the map screen, choose the List option to open the Star List.

Use the Star List as an inventory of recorded progress. It shows the galaxies, collected Power Stars, star types, and completion indicators. A galaxy without a full completion crown still has unfinished work, although some missions may not yet be available because they depend on Observatory progress, a Prankster Comet, a hidden route, or a Hungry Luma galaxy.

While building toward 60, prioritize ordinary missions in galaxies that are already open. They are generally the most dependable way to increase the total. If a galaxy has an unfinished entry, select it and read the available mission names instead of repeatedly replaying a completed mission. Replaying a mission does not create another Power Star unless the mission itself has a separate version, such as a comet or hidden-star objective.

After the first ending, return to this same list to separate standard missions from hidden, Luigi-rescue, Hungry Luma, comet, Purple Coin, Daredevil, Cosmic, Fast-Foe, and other special missions. Mark unavailable entries for later rather than assuming they were missed permanently.

The Garden dome deserves a specific place in this audit. Deep Dark Galaxy, Dreadnought Galaxy, Matter Splatter Galaxy, Melty Molten Galaxy, and the Garden Hungry Luma content can be postponed until after Bowser for ordinary story completion. They cannot be omitted from a true 120-Star cleanup. Check the Garden page before declaring Mario’s total complete, and repeat the same Garden-inclusive audit after switching to Luigi.

• Speak with Polari and open the Star List.
• Use mission names and completion icons to locate unfinished work.
• Prioritize available standard missions before difficult timed challenges.
• Record locked comet, Hungry Luma, and hidden-star objectives for later.
• Include every Garden galaxy and Garden Hungry Luma mission in the eventual 120-Star audit.

Clear The Fiery Stronghold when Bowser’s Star Reactor is available

Enter Bowser’s Star Reactor and select The Fiery Stronghold. The approach begins with Fire Bars, Thwomps, Fire Shooters, shifting gravity, and narrow stone paths. Move from safe platform to safe platform, and pause before gravity-field jumps so you can confirm which colored surface will pull Mario next.

Later, Bowser fires meteors at the climbing route. Keep moving upward and use the Life Mushroom area as a recovery opportunity if you need it. At the battle planet, Bowser jumps toward Mario and creates shock waves when he lands. Stand on or near a blue panel, then move away so his landing breaks the panel and exposes his tail to lava.

When Bowser runs around the planet, catch up to his tail and spin into it. He flips onto his back; spin into him again to damage him. The later phases add fireballs, more shock waves, and faster movement. In the final phase, Bowser requires two successful spins after the flip. Collect the Grand Star after the fight.

This mission is part of the normal route to the final area, but clearing it alone does not open Bowser’s Galaxy Reactor. Continue through the Observatory until Darkness on the Horizon is available and the file has at least 60 Power Stars.

• The Fiery Stronghold is cleared.
• The Grand Star is collected.
• The blue-panel and exposed-tail method is understood.
• Later Bowser phases are handled with patience rather than repeated close-range attacks.

Clear Darkness on the Horizon in Bowser’s Dark Matter Plant

Enter Bowser’s Dark Matter Plant and select Darkness on the Horizon. This mission begins with moving platforms over dark matter. Cross without lingering, then use the horizontally moving platforms to reach the next safe area. Falling into dark matter costs a life, so wait for a reliable platform cycle rather than forcing a long jump.

The rest of the route combines shifting gravity, narrow platforms, stairway sections, and dark-matter gaps. Reposition the camera before each major jump and use short, controlled jumps when the landing area is small. Treat every safe platform as a checkpoint for your decision-making, even though the mission does not create a permanent restart point there.

The Bowser battle uses the same basic blue-panel setup as The Fiery Stronghold. Lure his jump onto a blue covering, avoid the resulting shock waves, then spin into his exposed tail as he runs. After the first hit, Bowser adds fireballs and more aggressive movement. A spin can interrupt his own spin attack if he gets close, but do not chase him through shock waves or fire. The final successful phase requires the additional hit before he is defeated.

Collect the Grand Star after the battle. This is the fifth Grand Star in the normal route and the mission that completes the direct progression condition for Bowser’s Galaxy Reactor. The Engine Room’s sixth Grand Star remains useful for full campaign progress but is not mandatory for the first ending.

• Darkness on the Horizon is cleared.
• Its Grand Star is collected.
• The file has at least 60 Power Stars.
• The Engine Room may remain unfinished for now.

Speak with Rosalina and enter Bowser’s Galaxy Reactor

After reaching 60 Power Stars and clearing Darkness on the Horizon, return to Rosalina in the central area of the Comet Observatory. Speak with her to access the center-of-the-universe route. Bowser’s Galaxy Reactor is not selected like an ordinary dome galaxy; Rosalina is the access point.

Choose The Fate of the Universe when ready. The mission contains several separate approach sections. The opening castle-wall route uses illuminated gravity paths. Stay on the lit surfaces while avoiding enemies and fire hazards. The lava section uses platforms that sink after landing, so move forward instead of waiting on unstable ground.

The ice-block route disappears as you cross it. Continue decisively and prepare the next landing before jumping. Later sand, gravity, Bullet Bill, Banzai Bill, Thwomp, and collapsing-stair sections should be treated as individual hazards. Reset or reposition the camera before major jumps, and do not spend lives trying to rush a section you have not yet mapped.

If you fail The Fate of the Universe, the mission restarts from the beginning. Completed Power Stars, Grand Stars, opened domes, and cleared missions remain saved, so you do not need to repeat The Fiery Stronghold or Darkness on the Horizon.

• The file has at least 60 Power Stars.
• Darkness on the Horizon is complete.
• Rosalina provides access to Bowser’s Galaxy Reactor.
• The Fate of the Universe is selected.
• Earlier Grand Stars do not need to be recollected after a failed attempt.

Separate the first ending from full completion

Defeating Bowser in The Fate of the Universe and collecting its Grand Star completes the first campaign ending. This is separate from the 120-Star objectives. Bowser Jr.’s Lava Reactor, the remaining Engine Room missions, and all Garden missions may be postponed if your immediate goal is only to finish the story.

For full completion, continue using the Star List until Mario has all 120 Power Stars. Include ordinary, hidden, comet, Purple Coin, Luigi-rescue, Hungry Luma, Trial Galaxy, and Garden stars. Do not declare the total complete while the Garden page or Garden Hungry Luma galaxy still has uncollected entries.

The later Luigi and Grand Finale milestones are separate again. Keep the first Bowser victory, Mario’s 120-Star total, Luigi’s 120-Star total, and the final Grand Finale Galaxy unlock as distinct completion checks.

• First ending: 60 Power Stars, Darkness on the Horizon complete, and The Fate of the Universe defeated.
• The Fate of the Universe awards the seventh Grand Star.
• Garden content may wait for story completion but is mandatory for the full 120-Star audit.
• Mario’s 120-Star milestone and the later Luigi and Grand Finale goals are separate.

1. Confirm the requirements and prepare

Check the Power Star total on your file before starting the final route. You need at least 60 Power Stars and the five earlier Grand Stars from Gateway Galaxy, Bowser Jr.'s Robot Reactor, Bowser's Star Reactor, Bowser Jr.'s Airship Armada, and Bowser's Dark Matter Plant. The Grand Star from The Fate of the Universe is still ahead of you, so do not wait for a seventh Grand Star to appear before entering Bowser's Galaxy Reactor.

Return to the Comet Observatory and speak with Rosalina. Once the requirements are satisfied, she can send the observatory to the Center of the Universe, where Bowser's Galaxy Reactor appears as the final story galaxy. Select The Fate of the Universe from its mission list. Optional comet missions, Hungry Luma galaxies, hidden stars, and purple-coin challenges can remain unfinished.

If recent attempts have cost several lives, replay a familiar completed mission before trying the final route again. This gives you a safer chance to collect 1-Up Mushrooms and practice long jumps, wall jumps, spin attacks, and camera resets. Star Bits are not required to unlock or complete this mission, so do not spend them merely because you have them.

• At least 60 Power Stars are recorded on the file.
• The Gateway Galaxy Grand Star is collected.
• The Bowser Jr.'s Robot Reactor Grand Star is collected.
• The Bowser's Star Reactor Grand Star is collected.
• The Bowser Jr.'s Airship Armada Grand Star is collected.
• The Bowser's Dark Matter Plant Grand Star is collected.
• Rosalina offers access to Bowser's Galaxy Reactor.

2. Follow the gravity spotlights

The mission opens on a ruined castle-like structure. Bright spotlights create their own gravity fields. Walk into each illuminated area and let it pull Mario onto the corresponding wall or surface. Follow the connected spotlights upward instead of trying to cross the architecture with ordinary jumps.

Dry Bones and other enemies occupy parts of the climb. Keep moving through open sections and use a spin attack when an enemy blocks a narrow route. After each change in gravity, stop briefly to identify the next illuminated surface and the direction of the following beam. If the view becomes difficult to read, use the Nunchuk C Button to reset the camera before making the next jump.

The spotlights are the intended route through this opening section. Continue upward until the large spotlight carries Mario away from the castle structure and toward the lava planet.

• Enter the illuminated gravity fields rather than jumping blindly between walls.
• Reassess the next landing surface after every gravity change.
• Use a camera reset when the view hides the next spotlight.
• Reach the large spotlight leading to the lava planet.

3. Cross the lava planet

The lava planet uses moving and sinking platforms above lethal lava. Step onto a platform only when you are ready to continue, then move toward the next safe surface. Some platforms begin to sink after Mario lands on them, so waiting in place can remove the route behind you.

Watch for fireballs, steam bursts, and rotating hazards. Use short jumps to correct Mario's position when the next platform is moving instead of committing to a long jump too early. The cooled sections and solid platforms provide the safe route; the surrounding lava is not a recovery surface.

If a 1-Up Mushroom is directly along the route and does not require a risky detour, collect it. Otherwise, prioritize reaching the next large gravity spotlight. Entering that spotlight moves Mario to the ice section.

• Leave sinking platforms promptly.
• Avoid lava, fireballs, steam bursts, and rotating hazards.
• Use short corrective jumps when the next platform is moving.
• Reach and enter the next large gravity spotlight.

4. Cross the ice sphere

The ice sphere's exposed surface damages Mario, so treat it like lava rather than ordinary ground. Ice blocks appear ahead as Mario approaches and remain usable only briefly before collapsing. The safest approach is to keep moving toward the next group instead of waiting for a perfect arrangement.

Use controlled jumps from block to block. In narrow stretches, a direct jump between nearby blocks can be safer than trying to walk along the edge of a temporary path. Keep the camera aimed toward the next section and avoid broad turns that make the next block difficult to see.

The ice blocks are a route forward, not a place to stop and plan for long. Continue across the sphere until Mario reaches the next gravity spotlight.

• Do not treat the damaging ice surface as a safe floor.
• Move as soon as the next ice blocks form.
• Use direct jumps when the temporary walkway is awkward.
• Reach the spotlight at the far side of the ice section.

5. Traverse the quicksand planet

The next planet is covered with lethal quicksand. Stay on the moving stone platforms and follow their route across the planet. Use jumps to avoid Fire Bars and other rotating hazards, but do not jump toward distant shortcuts if the nearest platform is moving away from you.

Keep Mario near the center of each platform while it travels, then prepare for the next jump before the platform sinks or carries him into danger. If Mario starts to sink, aim for the closest moving platform rather than a faraway landing. Tornadoes are hazards here, not required tools for progress.

After crossing the quicksand, enter the next gravity field. This leads into the space-junk section where temporary platforms form ahead of Mario and disappear shortly afterward.

• Remain on the moving stone platforms.
• Avoid touching the quicksand.
• Jump over Fire Bars when the route requires it.
• Recover toward the nearest platform if Mario begins to sink.
• Enter the next gravity field.

6. Clear the temporary platforms and tower hazards

The next section forms platforms ahead of Mario and then removes them. Keep a steady pace and look toward the next platform before jumping. Gravity arrows change the direction in which Mario is pulled, so treat each change as a new short platforming puzzle rather than relying on the timing from the previous section.

The route includes rotating platforms, Fire Bars, fireballs, Thwomps, Bullet Bills, wall-jump sections, and additional disappearing platforms. Let a hazard's movement establish a safe opening before crossing. When a homing Bullet Bill targets Mario, move behind a solid obstruction where one is available so the projectile hits the obstacle instead of Mario.

Do not stop to defeat every enemy. The objective is to reach the Launch Star at the end of the route. Use wall jumps and gravity-directed jumps where required, then launch to the final staircase.

• Keep moving while the temporary platforms form and vanish.
• Reassess movement after every gravity change.
• Use solid obstacles to block homing Bullet Bills when possible.
• Pass the Thwomps, Fire Bars, and disappearing platforms carefully.
• Reach the Launch Star.

7. Climb the meteor-damaged staircase

The Launch Star sends Mario to the final staircase. Bowser Jr.'s airship fires meteors into the structure, causing parts of the stairs to collapse. Start climbing promptly and watch the next intact section before committing to a jump. Waiting at the lower end allows the route to deteriorate around you.

Recovery items are placed on side sections of the staircase, including a Life Mushroom and a 1-Up Mushroom. The Life Mushroom increases Mario's health capacity for the current attempt, while the 1-Up gives an extra life. Take one only when the detour is clearly safe; falling while trying to collect an item is a worse trade than continuing with your current supplies.

Keep moving upward as the meteor impacts open and destroy sections of the route. Reaching the top begins the final Bowser encounter. The three Bowser phases and the Grand Star collection are covered in the next chapter, not in this approach chapter.

• Begin climbing before meteor impacts destroy the lower route.
• Watch the next intact staircase section before jumping.
• Take the Life Mushroom or 1-Up only when the detour is safe.
• Reach the top and trigger the Bowser battle.

Confirm access and prepare for the mission

Check the file-selection or Observatory progress display and confirm that Mario has at least 60 Power Stars. You must also have the five Grand Stars needed to power the Observatory far enough to open this final route. Visit Rosalina at the Observatory after meeting those requirements, then select the gray star for The Fate of the Universe in Bowser’s Galaxy Reactor.

This is a full mission from the Observatory to the final battle. There is no separate boss-only practice option, so treat the approach as part of the challenge. The Wii Remote and Nunchuk controls remain important throughout: use A to jump, shake the Wii Remote or Nunchuk to spin, use Z to crouch or dive when needed, and press C to reset the camera. Correct the camera before a difficult jump instead of trying to turn the view while Mario is already airborne.

• Have at least 60 Power Stars.
• Have the required five Grand Stars.
• Speak with Rosalina and select The Fate of the Universe.
• Expect to replay the complete mission after a failed attempt.

Cross the gravity and platforming sections

The opening area is a stone-wall course controlled by moving spotlights. A lit section establishes the direction of gravity, allowing Mario to walk across that wall. Follow the active beam rather than jumping ahead of it. Dry Bones and Fire Bars occupy parts of the route, so wait for a safe opening and keep enough room to recover if the beam shifts.

The next stop is a lava planet with solid, sinking, and moving platforms. Move conservatively and watch for fire hazards before committing to a jump. You will then reach an ice planet where temporary ice blocks form a path in front of Mario and disappear after a short interval. Keep advancing instead of waiting on one block. When the route is narrow, a direct jump from one stable block to another can be safer than following every part of the path.

The sand section uses moving platforms and tall Fire Bars. Watch the rotation and cross when the gap between the bars gives Mario room. After the sand planet, the route becomes a two-dimensional Cosmic Block and gravity challenge. Use Wall Jumps to climb, avoid the Fire Bars, and pause briefly when the gravity chamber changes direction so you can identify the next safe wall.

• Stay within the active spotlight’s gravity field.
• Move promptly across the temporary ice blocks.
• Read the Fire Bar rotation before crossing the sand planet.
• Use controlled Wall Jumps through the Cosmic Block section.

Survive the lava tube and collapsing stairway

The final approach enters a large lava-filled tube with Thwomps, Bullet Bills, Banzai Bills, sinking platforms, and moving platforms. When a homing Bullet Bill targets Mario, place one of the Bowser statues between Mario and the projectile. Let the Bullet Bill strike the statue, then continue forward before another projectile can line up.

Near the end of the tube, a large Banzai Bill crosses the route alongside several smaller Bullet Bills. Let the large projectile pass before stepping onto the moving green platform. Rotate with the platform and watch the large projectile’s path while avoiding the smaller Bills. Continue to the stone platform and use the Launch Star.

The Launch Star sends Mario to the stairway before Bowser. Bowser Jr.’s airship fires meteors that destroy sections of the stairs, so keep climbing with short, controlled jumps. Avoid unnecessary side jumps toward broken sections. A Life Mushroom may appear on the route; collect it only if doing so is safe. Reaching the top begins the Bowser sequence.

• Use Bowser statues as cover from homing Bullet Bills.
• Let the Banzai Bill pass before crossing the moving platform.
• Climb the meteor-damaged stairs with controlled jumps.
• Reach Bowser to begin the three-phase battle.

Phase one: strike Bowser’s exposed head

Bowser begins with ground pounds that send expanding shockwaves across the small battle planet. Jump over each wave. He then surrounds himself with rocks and rolls toward Mario as a boulder. The vulnerable target is his exposed head. Wait until the head is about to reach Mario, then shake to spin into it. Contact with another part of the boulder damages Mario instead.

A successful head strike knocks Bowser out of the boulder and sends him sliding around the planet. Spin into him while he is sliding to damage him. He then resumes his attack pattern, and the next boulder roll moves faster. Repeat the head strike and follow-up spin until Bowser is sent to the next planet.

React to the boulder instead of chasing Bowser. If the position is poor or the camera is unclear, move away and wait for another roll. Staying alive through an additional cycle is safer than attempting a poorly positioned spin.

• Jump over Bowser’s ground-pound shockwaves.
• Spin into Bowser’s exposed head as the boulder reaches Mario.
• Spin into Bowser while he slides on his back.
• Repeat the sequence until the second planet appears.

Phase two: use the rubbery bulbs

The second planet is covered with prickly plants and rubbery bulbs. Bowser uses fireballs, fire breath, ground pounds, and shockwaves. Keep moving around the open parts of the planet and jump over the shockwaves instead of standing near the prickly plants.

When Bowser curls into his shell and rolls toward Mario, spin a nearby rubbery bulb so it travels into him. The bulb stuns Bowser and sends him sliding. During some of his normal attacks, Bowser may also stand beside a bulb, allowing you to hit him without waiting for the shell roll, but the shell attack is usually the clearest opening.

After the bulb hit, spin Bowser while he is sliding. The phase requires this stun-and-follow-up sequence more than once, with additional spins needed after later successful hits. Keep a clear route to a bulb and avoid standing between Bowser and the edge of the planet when he begins rolling.

• Avoid fireballs, shockwaves, and prickly plants.
• Redirect a rubbery bulb into Bowser during his shell roll.
• Spin Bowser while he slides after being stunned.
• Repeat the bulb and follow-up-spin sequence until the reactor planet appears.

Phase three: ignite Bowser’s tail with a blue orb

The final phase takes place on the Galaxy Reactor planet, with lava surrounding the arena. Bowser sends shockwaves across the surface, fires fireballs, breathes flames, and uses a shell roll. Jump over the shockwaves and track fireballs carefully because they can curve around the planet and approach again from another direction.

After the shell attack, Bowser prepares a ground pound. Stand on a blue orb and move away as his shadow closes over Mario. Bowser will land on and shatter the orb, fall into the lava, and set his tail on fire. He then runs around the planet. Move into his path so he turns, exposing the burning tail, and spin into that tail.

Bowser will then roll around the arena. Spin into his exposed body to damage him. Repeat the blue-orb setup, burning-tail strike, and follow-up spin until the fight ends. This is not a race. If Mario is near lava or the camera is unclear, retreat to open ground and wait for the next ground-pound opportunity.

• Jump over shockwaves and avoid fireballs and fire breath.
• Stand on a blue orb when Bowser targets it, then move away.
• Spin the burning tail and follow with a spin against Bowser’s exposed body.
• Repeat the sequence until Bowser is defeated.

Collect the final Grand Star and recover from failure

After the final successful hit, Bowser is defeated and the seventh Grand Star appears inside the Galaxy Reactor. Move to the Grand Star and collect it. The mission is not complete until Mario takes the star and the result sequence appears.

The first ending follows the collection of this Grand Star. The post-battle sequence shows the reactor’s destruction, the black-hole crisis, and the Lumas restoring the universe before Mario, Peach, Bowser, and the Observatory’s allies return safely. After the sequence and credits, save the completed progress when prompted. The file then returns to the Observatory with postgame content available.

A failed attempt restarts the mission from its beginning rather than placing Mario directly at Bowser. Collected Power Stars, Grand Stars, and unlocked areas remain part of the save file, but the route to the boss must be completed again. If the approach is the problem, practice the spotlight walls, ice blocks, lava tube, or stairs separately by replaying the mission. If Bowser is the problem, focus on one response at a time: the exposed head during phase one, the rubbery bulb during phase two, and the blue orb during phase three.

If lives are running low, return to the Observatory and replay a familiar cleared galaxy with dependable 1-Up opportunities. This preparation is optional and does not alter the access requirements. Do not confuse this first ending with the later 120-Star milestones: Luigi is not unlocked by the first Bowser victory, and the Grand Finale Galaxy requires additional completion under both brothers.

• Defeat Bowser and collect the seventh Grand Star.
• Allow the post-battle sequence to finish.
• Save the completed progress after returning to the Observatory.
• Remember that the 120-Star Luigi and Grand Finale milestones are separate postgame goals.

1. Audit Mario's file before attempting the unlock

Load the Mario file used for the first campaign and inspect the galaxy map and Star List. Check each galaxy by name rather than relying only on the total at the top of the file. A galaxy can still be missing a hidden, comet, Purple Coin, Luigi-rescue, Hungry Luma, or Trial star even when its ordinary missions are finished.

Open the Garden as soon as its entries are available. Deep Dark Galaxy requires 46 Power Stars and completion of King Kaliente's Spicy Return in Bowser Jr.'s Lava Reactor. Dreadnought Galaxy requires 48 stars. Matter Splatter Galaxy requires 50 stars and Heavy Metal Mecha-Bowser in Toy Time Galaxy. Melty Molten Galaxy requires 52 stars. Snow Cap Galaxy is created by the Garden Hungry Luma after The Sinking Lava Spire and 1,600 Star Bits.

The Garden is not needed to make Bowser's Galaxy Reactor available. Rosalina can send Mario there after he has 60 Power Stars, including the six earlier Grand Stars. Garden stars are still required for the complete 120-Star total.

• Mario's Star List is being checked galaxy by galaxy.
• The 60-Star final-access condition is separate from the 120-Star postgame condition.
• Deep Dark, Dreadnought, Matter Splatter, Melty Molten, and Snow Cap are separate audit entries.
• Every unfinished entry is recorded before difficult missions are attempted.

2. Finish the Garden and Snow Cap entries

Deep Dark Galaxy contains The Underground Ghost Ship, Bubble Blastoff, Guppy and the Underground Lake, Ghost Ship Daredevil Run, Plunder the Purple Coins, and Boo in a Box. For The Underground Ghost Ship, reach Kamella on the ghost ship and spin her green shells back when she fires them. In Guppy and the Underground Lake, follow Guppy through the underwater route and pass through the ringed gates. Ghost Ship Daredevil Run revisits Kamella under the one-health Daredevil condition. For Boo in a Box, use the hidden-star route to enter the purple box, change the gravity direction, break the crystal, and lure the Boo into the beam of light. Plunder the Purple Coins is available when the Purple Comet is over Deep Dark.

Dreadnought Galaxy contains Infiltrating the Dreadnought, Dreadnought's Colossal Cannons, Revenge of the Topman Tribe, Topman Tribe Speed Run, Battlestation's Purple Coins, and Dreadnought's Garbage Dump. In the regular Topmaniac battle, spin him into the electric barriers and keep away while he rebounds. The hidden star is Dreadnought's Garbage Dump, not a mission called Dreadnought's Ammo Depot. Enter the garbage area through the appropriate alternate route and use the Bob-ombs to destroy the marked piles.

Matter Splatter Galaxy has one mission only: Watch Your Step. Follow the temporary matter platforms through the ruins, use the pipe and wall-jump sections, break the crystal, obtain Spring Mario, and use the Spring Mushroom to reach the final area. Do not wait for additional ordinary missions to appear there.

Melty Molten Galaxy contains The Sinking Lava Spire, Through the Meteor Storm, Fiery Dino Piranha, Lava Spire Daredevil Run, Red-Hot Purple Coins, and Burning Tide. In Burning Tide, feed the Garden Hungry Luma, collect the five Silver Stars, and use the raised rock and platform sections as recovery points. Against Fiery Dino Piranha, circle the arena and spin the exposed tail when it comes within reach, then retreat before the next charge.

After The Sinking Lava Spire, feed 1,600 Star Bits to the Hungry Luma outside the Garden. In Snow Cap Galaxy, Star Bunnies in the Snow requires finding three Star Bunnies. Use the Koopa Shell on the opening chest, activate the Flipswitches, take the Fire Flower, and melt the snowmen blocking the routes. Use the Star Pointer to disturb suspicious snow piles. Catch all three bunnies and confirm the star in the Star List.

• Deep Dark has all six entries complete.
• Dreadnought has all six entries complete, including Dreadnought's Garbage Dump.
• Matter Splatter's Watch Your Step is complete.
• Melty Molten's six entries are complete, including Red-Hot Purple Coins.
• Snow Cap's Star Bunnies in the Snow is complete.

3. Audit every non-Garden galaxy, including Bubble Breeze

Check the early galaxies for ordinary, hidden, Luigi, comet, and Purple Coin entries. In Good Egg, look for Luigi on the roof after his letter arrives. In Honeyhive, follow the letter clue to Luigi at the tree. In Battlerock, use the Bullet Bill route to free Luigi from the saucer cage. In each case, the Ghostly Galaxy rescue must happen first, followed by speaking with Luigi in the Garage and receiving the relevant letter.

Check Space Junk for Yoshi's Unexpected Appearance, which is created by its Hungry Luma, and check Battlerock for Dreadnought's Garbage Dump. In Beach Bowl, follow the waterfall and wall-jump route for Wall Jumping Up Waterfalls. In Ghostly, verify Matter Splatter Mansion and both Bouldergeist entries. In Buoy Base, use the hidden-star marker to locate The Secret of Buoy Base.

In the Kitchen dome, keep these two similarly named entries separate. Bubble Breeze Galaxy contains only Through the Poison Swamp. Ride the large bubble across the poison swamp, collect the five Star Chips, use the Launch Star, and navigate the mines and rotating obstacles to the Power Star. Bubble Blast Galaxy is not the Kitchen galaxy; it is a Trial Galaxy reached from the Planet of Trials and contains The Electric Labyrinth. Completing Through the Poison Swamp does not complete The Electric Labyrinth, and completing The Electric Labyrinth does not complete Bubble Breeze Galaxy.

Continue through Gusty Garden, Freezeflame, Dusty Dune, Gold Leaf, Sea Slide, Toy Time, and the remaining dome galaxies. Follow every hidden-star marker, complete every displayed comet mission, and visit each Luigi letter location. For Hungry Luma missions, check the new galaxy created on the Observatory map rather than assuming the feeding event itself awards the star. The Star List must show the individual star, not merely the original galaxy's ordinary missions.

• Bubble Breeze Galaxy's Through the Poison Swamp is complete.
• Planet of Trials' Bubble Blast Galaxy remains a separate unchecked item until The Electric Labyrinth is completed.
• Good Egg, Honeyhive, Battlerock, and Ghostly Luigi stars are individually confirmed.
• All hidden, comet, Purple Coin, and Hungry Luma entries on the non-Garden map have been checked.

4. Complete the Green Star and Trial Galaxy requirements

Find the three hidden missions that award Green Power Stars. Once all three are collected, a green Launch Star appears near the Garage. Use that green Launch Star, not the Red Star, to reach the Planet of Trials.

The Planet of Trials has exactly three Trial Galaxies: Rolling Gizmo Galaxy, Bubble Blast Galaxy, and Loopdeeswoop Galaxy. Their missions are Gizmos, Gears, and Gadgets; The Electric Labyrinth; and The Galaxy's Greatest Wave. Complete all three and record them separately from similarly named ordinary galaxies. In particular, Trial Bubble Blast Galaxy is separate from Bubble Breeze Galaxy's Through the Poison Swamp.

Do not declare Mario's checklist complete until the Garden, Snow Cap, every Hungry Luma-created galaxy, all three Trial Galaxies, every Luigi-rescue star, every hidden star, and every comet and Purple Coin star are visibly complete. The target at this stage is 120 regular Power Stars, not the later Grand Finale star.

• All three Green Power Stars have been collected.
• Rolling Gizmo Galaxy, Bubble Blast Galaxy, and Loopdeeswoop Galaxy are complete.
• Bubble Breeze Galaxy's Through the Poison Swamp and Trial Bubble Blast Galaxy's The Electric Labyrinth are both checked independently.
• Mario's file shows 120 regular Power Stars.

5. Replay the final mission as Mario to unlock Luigi

After Mario reaches 120 regular Power Stars, return to Bowser's Galaxy Reactor and select The Fate of the Universe. Complete the full approach and final Bowser battle again. The first completion of the game does not make Luigi playable; this second completion after Mario reaches 120 is required.

Let the ending and save process finish. Return to file selection and confirm that Super Luigi Galaxy is now available. Luigi begins a separate campaign checklist. Mario's completed stars do not automatically fill Luigi's Star List.

• Mario has 120 regular Power Stars.
• Mario has replayed The Fate of the Universe after reaching 120.
• The save process has completed.
• Super Luigi Galaxy is selectable.

6. Repeat the complete audit as Luigi

Select Luigi and repeat the full checklist. Revisit every ordinary galaxy, the complete Garden, Snow Cap, every Hungry Luma-created galaxy, all three Trial Galaxies, every hidden star, every comet and Purple Coin mission, and all three Luigi-rescue locations. A Mario star does not count toward Luigi's separate 120-Star total.

Luigi jumps higher and has less traction. Release the Control Stick earlier near ledges and allow extra stopping distance after landing. He also loses air more quickly underwater, so surface or collect air-restoring objects earlier than Mario would. For Purple Coin, Daredevil, and speed missions, learn the route first and then attempt a controlled completion rather than repeatedly farming an already completed easy mission.

When Luigi reaches 120 regular Power Stars, return to Bowser's Galaxy Reactor and complete The Fate of the Universe as Luigi. Finish the ending and save process before checking the Planet of Trials for the final unlock.

• Luigi has 120 regular Power Stars.
• Luigi's Garden and Snow Cap entries are complete.
• Luigi's Bubble Breeze and Trial Bubble Blast entries are both complete.
• Luigi's hidden, comet, Purple Coin, Hungry Luma, and Trial entries are complete.
• Luigi has completed The Fate of the Universe after reaching 120.

7. Enter Grand Finale Galaxy and collect the 121st star

After the 120-Star requirement has been satisfied for both brothers and the required final-battle completion is finished, use the green Launch Star near the Garage to reach the Planet of Trials. Walk around to the reverse side of the planet and speak to the fourth Green Luma. It opens Grand Finale Galaxy.

Grand Finale Galaxy contains The Star Festival. Collect all 100 Purple Coins in the opening festival area, checking the town, castle approach, lake, side paths, and Starshroom route before taking the Power Star. Complete the mission once as Mario and once as Luigi. The star is counted separately on each file.

The final completion check is 121 stars on Mario's file and 121 on Luigi's file. The two files therefore contain 242 collected stars across both campaigns. The original Wii version also preserves the separate file totals and Star Bit tracking shown on the file-selection screen.

• Both files have 120 regular Power Stars.
• The fourth Green Luma is present on the Planet of Trials.
• Grand Finale Galaxy is accessible.
• The Star Festival star is collected as Mario.
• The Star Festival star is collected as Luigi.
• Both files show 121 stars.

1. Build a complete Star List audit

Open the Map and inspect every dome, Gateway Galaxy, the Gate, all Hungry Luma galaxies, the three Trial Galaxies, and Bowser’s Galaxy Reactor. A galaxy is not finished just because its ordinary missions are complete. Check for hidden, comet, Purple Comet, Luigi-rescue, Green Power Star, Hungry Luma, and Trial Galaxy entries.

Use the Garden thresholds as availability checks. Deep Dark Galaxy opens at 46 Power Stars after Bowser Jr.’s Lava Reactor. Dreadnought Galaxy opens at 48, Matter Splatter Galaxy at 50 after the required Heavy Metal Mecha-Bowser progression, and Melty Molten Galaxy at 52. Snow Cap Galaxy becomes available after Sinking Lava Spire and feeding the Garden Hungry Luma 1,600 Star Bits.

Record individual mission names as you go. Keep Mario’s and Luigi’s totals separate; Luigi does not inherit Mario’s Stars.

• Inspect every observatory dome, the Gate, Gateway, Hungry Luma galaxies, Trial Galaxies, Garden galaxies, and Bowser’s Galaxy Reactor.
• Mark each named Star List entry, not just the galaxy icon.
• Keep separate checklists for Mario and Luigi.

2. Finish the Garden galaxies

In Deep Dark Galaxy, clear The Underground Ghost Ship by following the beach and cannon route to Kamella’s ship. Return her Green Shell shots to damage her. In Bubble Blastoff, defeat the Undergrunt Gunner, reach the watermelon planet, and follow the bubble route upward. In Guppy and the Underground Lake, speak to Guppy and swim through all eight rings. The additional entries are Daredevil Run to the Ghost Ship, Plunder the Purple Coins, and Boo in a Box. The hidden Boo mission begins from the alternate route associated with the Ghost Ship missions; follow the light beam and trap the Boo before claiming the Star.

In Dreadnought Galaxy, Infiltrating the Dreadnought uses the Beam Planet, Pull Stars, springs, and interior launch routes. Dreadnought’s Colossal Cannons adds cannon fire and Flipswitch Panels. In Revenge of the Topman Tribe, spin Topmaniac into the electric rail three times; avoid jumping directly on Spiky Topmen. The extra missions are Topman Tribe Speed Run, Battlestation’s Purple Coins, and the hidden Dreadnought’s Garbage Dump. Enter the pipe beneath the saucer during the Topman route, then use the supplied Bob-ombs to clear the marked trash piles before the timer expires.

Matter Splatter Galaxy contains Watch Your Step. Move across the solid opening platforms, enter the green pipe, wall-jump through the vertical section, break the crystal, and use the Spring Mushroom. The material platforms appear and vanish in a fixed sequence, so wait for the next safe surface instead of jumping early.

In Melty Molten Galaxy, Sinking Lava Spire uses sinking metal platforms, a ground-pound switch, and Sling Stars. Through the Meteor Storm adds falling meteors and a rolling-ball section. In Fiery Dino Piranha, wait for the boss’s tail flame to go out, spin the tail into the boss, and repeat the pattern. Finish Lava Spire Daredevil Run and the hidden Burning Tide mission as well.

• Deep Dark: three ordinary Stars, Daredevil Run to the Ghost Ship, Plunder the Purple Coins, and Boo in a Box.
• Dreadnought: three ordinary Stars, Topman Tribe Speed Run, Battlestation’s Purple Coins, and Dreadnought’s Garbage Dump.
• Matter Splatter: Watch Your Step.
• Melty Molten: three ordinary Stars, Lava Spire Daredevil Run, Red-Hot Purple Coins, and Burning Tide.

3. Complete Snow Cap Galaxy

Feed the Garden Hungry Luma 1,600 Star Bits after the required Melty Molten progression. In Snow Cap Galaxy, turn around on the starting glass sphere and drop beneath it to find the Green Shell. Carry it to the nearby chest and use it to reveal the Sling Star to the snow planet.

On the snow planet, activate the buried Flipswitch Panels. Use the Star Pointer to clear snow from suspicious patches and holes. The opened route provides the Fire Flower. Burn the snowmen to release one Star Bunny, use the Green Shell on the side chest to release another, and search the holes for the third. Clear snow before beginning a chase, because the bunnies can disappear into uncleared terrain and the mission is timed. The Star List entry is Snow Cap Galaxy’s Star Bunnies in the Snow.

• Sinking Lava Spire is complete.
• The Garden Hungry Luma has received 1,600 Star Bits.
• All three Star Bunnies are caught.
• Snow Cap Galaxy’s Star is recorded.

4. Resolve hidden and Luigi-rescue Stars

Complete Good Egg Galaxy’s Luigi on the Roof first. Reach the starting planet’s house and climb to its roof during the Luigi mission. After the first Luigi rescue, use the next letter or Mailtoad message to locate Luigi under the saucer in Battlerock Galaxy; lure a Bullet Bill back to his cage. The third rescue is Luigi in the Honeyhive Kingdom, reached after the next letter. This order matters: Good Egg, Battlerock, then Honeyhive.

Audit the remaining hidden entries by name: Yoshi’s Unexpected Appearance in Space Junk, Battlerock’s Garbage Dump, Wall Jumping up Waterfalls in Beach Bowl, Matter Splatter Mansion in Ghostly, The Secret of Buoy Base, The Golden Chomp in Gusty Garden, Conquering the Summit in Freezeflame, Bullet Bill on Your Back and Treasure of the Pyramid in Dusty Dune, The Bell on the Big Tree in Gold Leaf, Hurry, He’s Hungry in Sea Slide, and The Flipswitch Chain in Toy Time.

Luigi and the Haunted Mansion is a normal Ghostly Galaxy Star but also begins the later letter-based Luigi rescues. Do not count a photograph or letter as the Star; enter the named mission and collect the Star in the galaxy.

• Good Egg: Luigi on the Roof.
• Battlerock: Luigi under the Saucer.
• Honeyhive: Luigi in the Honeyhive Kingdom.
• All named hidden Stars outside the Garden are recorded.
• Luigi and the Haunted Mansion is complete before expecting the letter-based rescues.

5. Complete every regular comet and Purple Comet Star

For the regular comet Stars, use the active comet icon and the mission prerequisite shown in the Star List. The regular entries are Dino Piranha Speed Run, Honeyhive Cosmic Mario Race, Pull Star Path Speed Run, Topmaniac’s Daredevil Run, Fast Foes on the Cyclone Stone, Bouldergeist’s Daredevil Run, Major Burrows’s Daredevil Run, Frosty Cosmic Mario Race, Sand Blast Speed Run, Cosmic Mario Forest Race, Underwater Cosmic Mario Race, Fast Foes of Toy Time, Daredevil Run to the Ghost Ship, Topman Tribe Speed Run, and Lava Spire Daredevil Run.

After the first completion of The Fate of the Universe, Purple Comets begin appearing. Enter each galaxy only when its purple comet is active, then select the Purple Comet row. The exact 15 mission names and route cues are: Good Egg — Purple Coin Omelet, starting on the sunny planet and sweeping the Pear, Rock, and Egg planets; Honeyhive — The Honeyhive’s Purple Coins, covering the starting planet around the tree, water, and honey walls; Space Junk — Purple Coin Spacewalk, following the Pull Star and moving-block route; Battlerock — Purple Coins on the Battlerock, riding the linear electric-rail platforms; Beach Bowl — Beachcombing for Purple Coins, searching the starting beach, islands, water, and hanging-vine route; Ghostly — Purple Coins in the Bone Pen, collecting coins through the bone-pen route while preserving safe landings; Gusty Garden — Purple Coins on the Puzzle Cube, circling the Puzzle Cube and checking each gravity face; Freezeflame — Purple Coins on the Summit, climbing the mountain and using the Ice Flower route where needed; Dusty Dune — Purple Coins in the Desert, sweeping the Sand Maze Planet before taking the final Launch Star; Gold Leaf — Purple Coins in the Woods, following the forest path and using the Bee Suit for elevated coins; Sea Slide — Purple Coins by the Seaside, using Bee Mario to reach coins above the water and cliffs; Toy Time — Luigi’s Purple Coins, following the toy-platform route and returning to the mission’s Star location; Deep Dark — Plunder the Purple Coins, searching the Ghost Ship and surrounding water route; Dreadnought — Battlestation’s Purple Coins, collecting the linear coins along the Dreadnought exterior and taking the final Launch Star route; Melty Molten — Red-Hot Purple Coins, crossing the lava platforms and meteor sections while collecting the required coins.

The purple comet itself is only the prerequisite for entry, not a locating strategy. If it is over another galaxy, check the Observatory Map or use the purple Comet Luma near Rosalina to move the comet for Star Bits. For timed or linear missions, practice the route without trying to collect everything, then make a full attempt. Missing a required coin in Battlerock or Dreadnought costs the attempt, so take the Green Mushroom when available and avoid unnecessary jumps.

• All 15 regular comet Stars are collected.
• All 15 named Purple Comet Stars are collected.
• No active purple-comet galaxy has an uncollected Purple Coin Star.

6. Finish Hungry Luma and Trial Galaxy content

Complete Sweet Sweet, Sling Pod, Drip Drop, Bigmouth, Sand Spiral, Boo’s Boneyard, and Snow Cap. For Bigmouth, carry the Green Shell through the underwater brick wall, collect the five Star Chips, use the Launch Star, and bring the light-emitting shell back to open the chest. In Sand Spiral, use the Boo or Bee route, then take the Rainbow Star through the rotating-disc section.

The three Green Power Stars are The Secret of Buoy Base, Treasure of the Pyramid, and Luigi under the Saucer. Once all three are collected, the three Trial Galaxies become available: Rolling Gizmo Galaxy, Bubble Blast Galaxy, and Loopdeeswoop Galaxy. These are separate from the seven Hungry Luma galaxies and must each be checked in the Star List.

• All seven Hungry Luma galaxies are complete.
• The three Green Power Stars are recorded.
• Rolling Gizmo, Bubble Blast, and Loopdeeswoop are complete.

7. Complete Mario, then Luigi and Grand Finale

Do not replay Bowser merely because the total is close to 120. Mario’s Star List must show 120, including the complete Garden audit, Snow Cap, every hidden Star, all Luigi-rescue Stars, all regular comets, all 15 Purple Comets, the seven Hungry Luma Stars, and the three Trial Galaxy Stars. Then replay The Fate of the Universe as Mario. Completing it after the 120-Star total unlocks Super Luigi Galaxy.

Repeat the complete audit as Luigi. Luigi’s Star List is independent, and the character’s different movement can make timed missions require a slower setup or a different jump approach. Revisit the Garden, Snow Cap, every Hungry Luma galaxy, every Trial Galaxy, every comet mission, every Purple Comet mission, and all hidden entries.

When Luigi reaches 120 Stars, replay The Fate of the Universe as Luigi. Grand Finale Galaxy then becomes available from the Planet of Trials. Complete The Star Festival once as Mario and once as Luigi. The final observable totals are 121 Stars for Mario, 121 for Luigi, and 242 across both campaigns.

• Mario reaches 120 Stars.
• Mario replays The Fate of the Universe.
• Super Luigi Galaxy unlocks.
• Luigi reaches 120 Stars independently.
• Luigi replays The Fate of the Universe.
• Grand Finale Galaxy appears at the Planet of Trials.
• The Star Festival is completed once by each character.

Reset the camera before precision movement

The Nunchuk C Button resets the camera. Use it whenever Mario lands on a new planetoid, exits a Launch Star, approaches a narrow ledge, or becomes difficult to orient around a wall, pole, rotating platform, or curved surface. Reset the view before moving whenever possible rather than trying to correct the camera during a jump.

For a difficult jump, stop on stable ground, press C, identify the landing platform, and choose the movement that reaches it. If Mario is walking around a small spherical planet and the direction feels reversed, use short Control Stick inputs until the new gravity direction is clear. A large correction near an edge can turn a safe setup into an accidental fall.

• Press C before a jump when the landing is not clearly visible.
• Set Mario up on solid ground before adjusting the camera.
• After a Launch Star or gravity change, confirm which surface is currently below Mario.

Use movement options as controlled tools

Use ordinary jumps for short corrections and reserve long jumps, side somersaults, and backward somersaults for situations that actually require extra distance. A midair shake performs a spin and can extend a jump or help Mario recover toward a platform. Make one deliberate spin near the useful part of the jump instead of shaking repeatedly while judging the landing.

Treat every landing as a new setup when a route contains several jumps. Do not keep holding the Control Stick after touching down unless the next platform is broad and obvious. On spherical planets, camera orientation and gravity can make familiar directions misleading, so pause briefly, reset the view, and approach the next Launch Star or landing point deliberately. Use Z to crouch or dive when the situation calls for it, but do not substitute diving for a properly aligned jump.

• Choose the takeoff point before using a long jump or somersault.
• Use a midair spin as a correction, not as a replacement for proper positioning.
• Do not commit to the next jump until Mario’s current gravity direction is understood.
• Use Z deliberately for crouching or diving instead of pressing it during every jump.

Give Co-Star Player 2 a narrow support role

The original Wii release supports Co-Star mode with a second Wii Remote. Player 2 does not control Mario. Player 2 can collect Star Bits, shoot Star Bits, stop some enemies, and assist Mario by pointing at him. The second player can also make Mario jump or spin when the appropriate pointer action is used, including a stronger combined jump when both players activate the jump input together. Player 1 remains responsible for steering, ordinary route selection, transformations, and most movement decisions.

Assign one task before entering a dangerous section. During traversal, Player 2 should gather Star Bits and keep the pointer away from the intended landing area unless an assist is needed. During a boss encounter, Player 2 can watch for interruptible enemies or supporting hazards and use Star Bits when the target permits it. Some enemies are unaffected, so Co-Star mode is support rather than a universal stun.

If Player 2 causes unwanted jumps or makes the pointer difficult to follow, stop using that assist temporarily. Clean movement from Player 1 is more valuable than constant input from the second controller.

• Use Player 2 to collect Star Bits during ordinary traversal.
• Use Star Bits against interruptible enemies only when an opening is available.
• Keep the pointer away from Mario’s destination unless an assist is intentional.
• Remember that Player 2 needs only a Wii Remote for Co-Star mode.

Recover intelligently after losing lives

When several attempts fail in the same mission, pause and choose Return to the Observatory instead of immediately repeating the same mistake. Select a previously cleared, low-risk mission with familiar movement and visible Star Bits. Use that mission to rebuild concentration, review the camera and jump habits, and gather Star Bits before returning to the difficult objective.

The pause screen shows the Star Bits collected in the current galaxy, while the Observatory and file screens track the journey’s overall Star Bit total. If a Hungry Luma requires Star Bits, gather them deliberately in a safe cleared mission and avoid spending them unnecessarily on enemy shots. Do not rely on the life counter as a permanent stockpile: the instruction booklet states that lives reset when the game is restarted.

Before retrying, identify the exact failure point. If the problem was a camera angle, practice resetting before the jump. If it was a movement mistake, use a shorter jump or wait for a safer landing cycle rather than repeating the same timing.

• Return to the Observatory after repeated failures.
• Replay a familiar mission to regain control and gather Star Bits.
• Name the specific section that caused the death before launching another attempt.
• Remember that restarting the game resets the current life count.

Protect the correct save file

After completing a stage, use the save option when prompted. The file-selection screen lets you continue a file, copy it to another file slot, change its icon, or erase it. Erasing is permanent. Confirm the selected file, icon, and Power Star count before choosing an erase or copy command, and check which file you load afterward so a backup does not become an accidental detour.

A copied file is useful before a long session of comet, Purple Coin, or final-mission attempts, but it is only a backup if you understand which file is receiving new progress. Save after important completed stages rather than assuming every attempt is preserved automatically. If you return to the Observatory without saving after a mission, do not assume every change from that session has been written to the selected file.

• Check the file icon and Power Star count before loading.
• Use Copy only after confirming the destination file slot.
• Never choose Erase until the selected file is definitely expendable.
• Save after important completed stages.

Manage fatigue and verify the first ending

Do not force difficult motion-heavy sections while tired. The original Nintendo manual recommends taking a 10- to 15-minute break every hour. This is especially useful for camera-heavy platforming, comet races, and Purple Coin missions, where rushed inputs often create a second mistake immediately after the first.

For the first ending, reach 60 Power Stars, complete the required progression through the Observatory’s domes, and collect the five Grand Stars needed to open the final route. The final access condition includes completing Bowser’s Dark Matter Plant. Speak to Rosalina when the route is available, enter Bowser’s Galaxy Reactor, clear The Fate of the Universe, defeat Bowser, and collect the Grand Star. The seventh Grand Star is awarded by this final mission; all seven Grand Stars are not required before entering it.

Verify the ending sequence has played and that the completed campaign remains on the intended save file. Optional Power Stars can be collected later, so do not delay the first ending while trying to complete every comet, secret mission, or Hungry Luma galaxy.

• Confirm 60 Power Stars and the required five Grand Stars.
• Confirm Bowser’s Dark Matter Plant is complete and the final route is available.
• Clear The Fate of the Universe in Bowser’s Galaxy Reactor.
• Collect the final Grand Star and confirm that the ending sequence has played.

Follow the postgame milestones in order

After the first ending, continue collecting the remaining Power Stars as Mario until the Mario file reaches 120. Then replay The Fate of the Universe and complete the final Bowser battle again. This second completion after 120 Mario Stars unlocks the ability to replay the adventure as Luigi. It does not unlock Luigi immediately after the first 60-Star ending.

As Luigi, collect the 120 Power Stars again. The missions are replayed with Luigi’s different movement characteristics, so slippery landings, underwater sections, and races may require new timing. After Luigi reaches 120 Stars, complete The Fate of the Universe once more. This final-battle completion makes Grand Finale Galaxy available for both brothers.

Go to the Planet of Trials and speak with the fourth Green Luma to enter Grand Finale Galaxy. Complete The Star Festival by collecting its 100 Purple Coins. Do this once as Mario and once as Luigi if claiming the complete route. Each brother receives that galaxy’s additional Grand Finale Star, making one extra star available to each character.

• Reach 120 Power Stars as Mario.
• Complete The Fate of the Universe again after reaching 120 Mario Stars.
• Confirm Luigi mode is available.
• Reach 120 Power Stars as Luigi.
• Complete The Fate of the Universe again as Luigi.
• Confirm Grand Finale Galaxy appears through the fourth Green Luma on the Planet of Trials.
• Complete The Star Festival once as Mario and once as Luigi for both Grand Finale Stars.