List of Super Mario Galaxy glitches
This is a list of glitches in the game Super Mario Galaxy.
NOTE: Unless otherwise noted, all names of glitches are unofficial.
Beach Bowl Galaxy camera glitch
For this glitch, the player should go to the Beach Bowl Galaxy and enter the The Secret Undersea Cavern mission. The player must enter the cavern and unlock the Launch Star. Then, they should perform a Wall Jump up the tunnel and reach the top of the mountain. If Mario goes back into the hole and walks around the cavern, the player just sees the mountaintop as the camera is still outside.
Comet Observatory camera glitch
The player must collect a Red Star in the Comet Observatory and go down the Fountain platform. From there, sometimes when the player flies out, the camera will not pan out of the platform, and the player can see Mario going out of sight. Some seconds later, the camera will return to normal. This can also be done via the Sand Mario glitch. If the player, while swimming through the sand, goes after the cage and then jumps out, they can go further inside the cave, leaving the camera behind.
Exploding Li'l Cinder
To perform this glitch, the player must select the Freezeflame's Blistering Core mission of the Freezeflame Galaxy and play until they reach the star. The player must grab a Fire Flower and shoot a fireball at a Li'l Cinder that had just fallen in the lava. This will cause a fiery explosion where the Li'l Cinder had fallen, which will last for the rest of the level.
Ghostly Galaxy camera glitch
This glitch can be performed in the Ghostly Galaxy in the Beware of Bouldergeist mission. The player must go through the fireplace. If they are outside, they must go back through the fireplace in the mansion. The camera will still be outside and the player will see Mario's silhouette moving behind the wall, inside the mansion. It quits when Mario goes outside again.
To perform this glitch, the player must first go to the Red Star near the Starshroom in the Garage of the Comet Observatory. The player must spin in an exact spot. If done correctly, Luigi will yell but not move. Mario can also do this if he spins in the air while as Flying Mario.
The same thing also happens if the player spins Luigi twice repeatedly. Luigi will not move on the second spin.
Mario/Luigi must be under a Launch Star, close enough to not need to jump to use it. The player should set the first-person camera mode and shake . The character will use the Launch Star and the camera will be misplaced very close to it. In some cases, such as the Launch Star at the Train Planet in Toy Time Galaxy, the camera will be kind of stuck on a wall.
Out of bounds in Freezeflame Galaxy
This glitch is easier with Luigi, but both Mario Brothers can perform this glitch. To perform it, the player should go to the Freezeflame Galaxy's mission Hot and Cold Collide. Mario should reach the second planet and triple-jump in the walkway between the sides of the planet. The player should use the slope-climbing glitch to reach the top of the planet. When the player walks on the planet, random textures of ice water will appear. The planet surface will also appear in the wrong spot or be invisible.
Wrongly-placed Comet Star icon
In the Engine Room, the player should get the three non-hidden stars in the first galaxy. Then, they should get two stars in the second galaxy and two stars in the third galaxy. A Prankster Comet may be in orbit for the second or third galaxy but the comet star icon instead appears in the first galaxy.
This glitch can be performed in the Ghostly Galaxy, the Deep Dark Galaxy, and the Gold Leaf Galaxy. In the Ghostly Galaxy mission Beware of Bouldergeist, Mario/Luigi should barely enter the mansion, then come out. If done correctly, the mansion music will play outside.
In the Deep Dark Galaxy, in any level (except the Daredevil/Purple Coin comet), when Mario/Luigi enters the cave far enough, the music will change. If they come out of the cave, the music will still play, even if they get the Rainbow Star or Fire Flower in the level. This does not work while the Undergrunt Gunner is still on the beach in the mission Bubble Blastoff.
In the Gold Leaf Galaxy, there is a music glitch in the mission When It Rains, It Pours. To do it, one must spin to the end of the vine leading to the boss area and then spin and fall down outside of the boss area. If done correctly, the boss theme should play during the level instead of the regular theme.
For this glitch, the player should go to the Good Egg Galaxy and select King Kaliente's Battle Fleet. Mario should go onto the roof of the house on the first planet. If Mario/Luigi starts to enter the orange pipe while using the Launch Star, no music will play until they reach the Airships or if they go into the hidden area on the rocky moon.
Between Fire and Ice
This glitch can be performed in Freezeflame Galaxy's mission Hot and Cold Collide by jumping into the edge of a lava tile at a precise angle and position while the Ice Flower is active. The player will be squished in between the hexagonal tiles created by the Ice Flower and the square tiles of lava, and after a second begin to vibrate rapidly. The player does not take damage while in this state, and does not begin to take damage until the hexagonal ice tiles melt. After these tiles melt, the player can complete the level if this is performed near enough to another Ice Flower.
Bonk Warps can be done in many different places throughout the game. They occur after the player Long Jumps and hits a wall, when the player finally falls to the ground they will be warped up to the same horizontal position of where they landed but the vertical position of where they "bonked" on the wall (non-exhaustive list). 
Bowser's Star Reactor death glitches
The player must long jump off the edge at the end of the very first part of the galaxy, off to the right side of the Warp Pipe-like structure. If done correctly, Mario respawns at the area with the Thwomp. However, the glitch is very area-specific.
To trigger a second glitch involving deaths in Bowser's Star Reactor, the player must get to the end of the Loop Planet and get on the platform. If they do a long jump toward the Gravity Planet while the platform is moving, Mario will fall towards the gravity planet and die, tumbling as if he went into a black hole.
Clipping inside spheroid planets
There are many different places this glitch can be done. The first way is to go to Drip Drop Galaxy and open the chest containing the Spiny Cheep Cheep. If the Porcupuffer hits Mario/Luigi so that he is pinned to the ground, Mario/Luigi may fall through the floor and into the planet, still being able to swim. The glitch will end when Mario/Luigi swims up through the surface of the planet and into the main water body, or when he dies somehow.
Another way this can be performed is to go to Good Egg Galaxy's Rock Planet during the Purple Comet mission. If Mario/Luigi Spins near the metal bulge with the Star Bit crystal on it, he will fall into the planet and suddenly start perpetually orbiting around the unseen center of it; glitching the camera as well. The only way to end the glitch is to exit the level.
Another way is to go to Melty Molten Galaxy and enter the mission Through the Meteor Storm. On the Stone Octagon Planet, the player should stand near the first Thwomp in Mario's path. When it smashes into the ground, Mario or Luigi will instantly fall through the planet's floor and into the black hole.
Another way is to go to Snow Cap Galaxy and enter the mission Star Bunnies in the Snow, catch two of the three Star Bunnies, and have Fire Mario/Fire Luigi and near a high ravine. The player must then throw a fireball at the bunny. If done correctly, Mario/Luigi will fall through the planet with the camera shifting in random directions. There are two ways to end the glitch: wait for the timer to hit 0, or exit the mission.
For this glitch, the player must go to Toy Time Galaxy's first mission, Heavy Metal Mecha-Bowser, and reach the Mecha Bowser planet. The player must be in the place with the Mechakoopa and guide one to the gravity wall near the Fire Bar. Then, they should Ground Pound the enemy, causing a coin to pop from it. If done correctly, the coin is attracted by the Fire Bar's gravity and disappears.
Comet Tico glitch
It is possible to cause Comet Tico to float upside-down. This is triggered by talking to Comet Tico from a very specific place. The player should stand at the back-center part of his shadow with it facing opposite the direction of the camera. Comet Tico will turn upside down to receive the Star Bits.
Fall through lava
On the Tower Planet in Bowser's Galaxy Reactor, if Mario/Luigi lands in the lava right next to one of the moving green platforms, they will be under the platform and then under the lava. When Mario/Luigi stops sprinting in pain, he will be stuck in some gravity force beneath the lava. If the player then Spins, they will fall away from the planet and then be sucked into a black hole.
On the Comet Observatory, when the player falls off, they are lifted back up to the observatory by the ship. If Luigi runs to the Beacon and long-jumps, he will hit the bar spinning around the beacon and fall. He will be lifted back to the ground, but he will fall again, only to be lifted a second time normally. Mario can do this too, but it's harder to pull off as him.
Falling through the hill
In Deep Dark Galaxy the player needs to approach the hill closest to the starting point. Mario needs to backflip onto the hill and use the slope climbing glitch. When Mario reaches a certain point on the hill, he will fall through it and either die or land in a body of water outside the normally-accessible area.
To do this in the Toy Time Galaxy, the player must start the mission Fast Foes of Toy Time and go to one of the Tox Boxes and land in the hole. It makes Mario lose a life, but it flings Mario and falls in the level. It can also fling the camera when Mario gets squished by the Tox Boxes when doing this glitch.
To do this in the Dusty Dune Galaxy, the player must start the level "Blasting through the Sand". When the player goes to the planet that has the switch, Mario must ground pound it and wait about 40 seconds. Mario should jump several times and when time runs out, Mario will be flung into the sky.
To perform this glitch, the player should go to the level Tarantox's Tangled Web. Mario should go to the final planet where Tarantox is fought and launch the green Toad onto the platform. Then, the player should jump into the sling pod and launch Mario onto the same platform so it breaks. If the player looks at Toad closely, he can be seen floating.
Ghostly Galaxy's murderer-roof
To perform this glitch, the player should go to the Ghostly Galaxy and enter the Luigi and the Haunted Mansion mission. If Mario is near the window with Luigi, jumps down the platform, and lands on the spiky roof, Mario loses a life instantly.
In Space Junk Galaxy's Tarantox's Tangled Web, the player should make their way to the Small Maze Planet, and head to the spot on the glass directly above the Launch Star. They should then crouch, and then as they are uncrouching they should spin. The player's hitbox will extend far enough below the glass that it reaches the Launch Star, and Mario will get clipped into the glass and sucked into the Launch Star, where they will continue the mission. A similar clip can be done at the end of Super Mario Galaxy 2's Battle Belt Galaxy.
Gravity blocks glitch
In the level Gusty Garden's Gravity Scramble, the player should perform a long-jump on the left corner at the bottom of the third group of blocks. If done correctly, Mario/Luigi may fall back to the planetoids where the Launch Star is. Because the blocks' gravity has been changed, if the player uses the Launch Star, they will fall back to the Launch Star immediately after landing. Therefore, the only way to progress is to die or reset the level.
Gravity tug of war glitches
There are two possible ways to perform this glitch in Bowser's Star Reactor. For the first way, the player must jump on top of the Thwomp after the spiral planet, then long jump off of it and spin. If done correctly, the player will be caught in a gravity tug-of-war between gravity of the planet and the out-of-bounds area until he or she finally flies out of bounds and dies.
Half-Swim through the glass
This glitch can be performed in the Buoy Base Galaxy. Mario or Luigi must head to the edge ring of Buoy Base, then fall to the second or third ring by spinning. There, the player needs to walk to the glass. If done correctly, only half of Mario or Luigi passes through the glass, so the player can swim half in the space and half in water.
Inside the Dreadnought
In Dreadnought Galaxy, the player should select the Dreadnought's Colossal Cannons mission. At the end of the level, where the two Sentry Beams are found and when the final moving platform is close to stopping, they have to jump off. If performed correctly, Mario/Luigi will be pushed inside the planet and hang on to an invisible platform once inside. If the player presses , Mario/Luigi will get up, only to fall into space and lose a life.
To perform this glitch the player must go to the second half of Bubble Breeze Galaxy. Mario/Luigi should backflip onto the rocks and land on a small invisible platform above the swamp with slippery edges. A huge shortcut can be taken in the level using the glitch, by long jumping to the area with the Power Star on the other side of the rocks. 
To perform this glitch, the player will need to fly with a Red Star to the top of the Beacon. The character and will pass through the Beacon.
Launch Star Warps
Similarly to Bonk Warps, Launch Star warps occur sometimes when the player lands on the planet with the same animation as they do when Long Jumping into a wall. This happens most notably on the Cyclone Stone in Beach Bowl Galaxy's The Secret Undersea Cavern. 
Planet orbit death
In the level Beware of Bouldergeist in Ghostly Galaxy, when the player gets to the hollow planet with a bouncy core, the player has to do a long jump, holding the forward. If it is done correctly, Mario or Luigi will end up orbiting the planet and, after some yet unknown conditions, he will fall to death, either through the planet, or moving past it.
Pull Star Movement exploit
Rising Dry Bones
To perform this glitch the player must go to Dusty Dune Galaxy's Sunbaked Sand Castle. After the player ground-pounds the button in order to raise the tower, the second player should aim the cursor at the Dry Bones and holds down to stun it (while the tower is still rising). The Dry Bones will keep rising until the player stops stunning it.
In the first Mission of the Deep Dark Galaxy, there is a cannon fixed into the beach. Mario or Luigi must jump into the cannon and aim at the spot where the umbrella connects to the pole as far to the right as possible. If done correctly Mario will be in the sand but partly in the lawn chair. Mario must then crouch and move forward and he will fall under the sand and start swimming in it. Another way to do this is to get to the part where Mario is partly in the chair and have a crab hit Mario then crouch down. While Mario is in the sand if he swims too far away or down he will die. Mario can access the inside of the red Starshroom, the inside of one of the palm trees, or the vases just by jumping under them. If Mario swims under the gate, he will reach the same out-of-bounds water area as in the "falling through the hill" glitch.
Shaking in the seam
If the player positions Mario at the right spot on the seam in the ground of the entrance to the Garden dome, Mario will shake rapidly because the game treats it as if Mario were falling.
Although spinning is normally not possible on slippery slopes, the player can bypass this restriction. To do so, the player must jump onto the slope, face away from the slope, press the control stick in the direction Mario/Luigi is facing, jump, then Spin while reversing the stick to face the opposite direction from Mario/Luigi. This odd glitch can be done multiple times in a row to climb slopes that are otherwise too steep to use. Several sub-glitches make use of this. Another way of performing this glitch is to walk up a slope and spin repeatedly. However, this version only works on certain slopes.
Standing on air
To perform this glitch, the player must go to Bowser's Star Reactor and get to the point where Bowser starts spitting asteroids at the checkered platforms. When Mario gets to the last platform before the Bowser battle, the player must quickly zoom in with the camera and Mario will stare at Bowser. Mario will not move while the checkered platforms sink down and will stand on air. However, If Mario looks down, he goes out of camera mode and falls.
Stuck on Bowser Jr.'s Airship
During the final boss battle, after Bowser is finished talking to Mario, the Gravity will change and Mario would normally be drawn to the first planet they battle on. However, if Mario spins at the right moment as the gravity switches and heads for the Airship, they will be stuck fighting uncontrollably. It is possible to be freed by the warping glitch or by jumping or spinning. Performing either action will send them to the boss planet.
Stuck on umbrella
This glitch only works in the Deep Dark Galaxy. The player should choose any mission except the comet mission. The player must enter the cannon and fire it into a certain red section on the beach umbrella. Once done, Mario is stuck in a curled-up position, though he can still be moved around. If the player stops moving the on the , the glitch will end.
The same can happen if Mario is fired with the cannon to a specific spot on the wall.
Suicidal Spin Jump
As Luigi, in Bowser Jr.'s Lava Reactor, on the first planet, the player needs to do a triple jump towards the cage with the three coins in it and land the second jump right on top of the cage. When done, in the middle of the third jump, the player must spin and, if done correctly, Luigi will be sent flying towards the lava planet. Due to landing so far away from where the Launch Star makes the player land, Luigi will have no choice but to land in the lava, bounce around a few times, and lose a life.
Walk on the map
On the Comet Observatory, if the player jumps correctly, Mario will land right on top of the big blue map and stay there. The player can move left and right or jump off, but if the player does nothing, Mario will remain on top of the map without falling off.
In Grand Star Rescue, if the player shoots a Star Bit at the pink pyramid-shaped objects on the Metal Planets on the same frame that they enter the pipe into the Flipswitch Area, the game will freeze.
Loopdeeloop Galaxy death warps
In Loopdeeloop Galaxy, Coach will give the player a tutorial on how to control the Manta Ray. However, if the player backflips off of the the Ray within 1/30 of a second of the beginning of the tutorial, they will be able to move around during this tutorial. Spinning at any point while the tutorial is active crashes the game.
In The Flipswitch Chain and Fast Foes of Toy Time, activating all of the Flipswitches on the Chain Planets stops all of the Spike Traps where they are when the final switch is activated. Getting the Spike Traps in a certain position and then getting hit by one into the gap between two flipswitches puts Mario in a state where he cannot move and cannot pause. The only way to escape is to reset the game.
To perform this glitch, the player should play as Luigi at the final fight with Bowser and wall-jump off the far-left side of the first large platform on the stairway leading to Bowser. This will allow him to skip the tile after the first large platform. After passing the tile, he can make his way up to Bowser. Bowser and the airship will not be solid. If the player backtracks and tries to trigger the cutscene, the game will freeze.
Gearmo's Trash Freeze
This can be done on any star where Mario needs to blow up trash. After talking to Gearmo to start the timer, the player should walk to the edge of the platform and jump off about 2 seconds before time runs out. If done correctly, the death sound effect will play but Mario will teleport back to Gearmo. The camera will then move away and slowly spiral downwards on its own, but the game will not respond to any controller input. This can only be escaped by resetting back to the Wii menu.
Bee Mario underwater
For this glitch, the player must select The Silver Stars of Sea Slide mission in Sea Slide Galaxy. From the starting island, the player must toss the shell at the crystal with the Bee Mushroom, and must turn the camera away right before the Mushroom lands the second time. The player must then dive into the water and swim back onto the island, still facing away from the island. By turning back toward the island, the Bee Mushroom should be underwater. If the player gets the mushroom like this, Mario/Luigi will be transformed into Bee Mario/Luigi, but they will be underwater and be able to swim around.
While underwater, the "Air" meter is replaced with the "Fly" meter, though it still functions the same as the "Air" meter. Additionally, Bee Mario still cannot collect shells underwater, like on land. To get out of the water, the player must shake the Wii Remote and fly while in the air; jumping back into the water causes the player to lose the Bee suit, like normal. While outside of the water, the "Fly" meter is gone, but Bee Mario can still only fly as long as the meter would allow.
Coin Saves Mario's Life
To perform this glitch, the player must be near both a coin and an enemy that can easily knock Mario or Luigi off his feet. The player must have one wedge of health and get pushed by the enemy into the coin. Then, the player will be revived instead of losing a life. This glitch is also present in Super Mario Galaxy 2.
Normally if playing as Mario, Kingfin will shine beams of light from his eyes when being fought. When playing as Luigi, no light will shine. However, if Mario interacts with Luigi on the Comet Observatory (after he has been rescued) by jumping, ground-pounding, etc. before the player fights Kingfin, the eyes will not shine, as if the player were playing as Luigi. This can be performed as many times as the player wishes, and if Mario fights Kingfin without bothering Luigi, the glitch will not come into effect.
Die in midair
In both games, if the player is in a galaxy that is under a Speedy Comet or timed Purple Comet, and they jump with the right timing while the timer is at 00:01, Mario will stand in midair while doing his death animation.
In Stone Planet of Space Junk Galaxy, while freeing Toad from a Sling Pod, if Toad gets stuck in another Sling Pod, the game will think that Toad is still stuck near Mario/Luigi, and the player will be able to press to talk to the Toad, even though the Toad is on another Planet.
Fly to the Planet of Trials
On the Comet Observatory, the player can use the Red Star to go to the Planet of Trials using this glitch. The player must be Luigi and break open the crystal with the Red Star in the Garage, but must not use it and go to the Planet of Trials. Luigi must go to one of the three ends and run, then use a homing ground pound on the green Luma that takes the player to the Grand Finale Galaxy. Luigi will fall out of the planet's gravity field and toward the Observatory. The player must use the spin to navigate Luigi to the Red Star without touching ground as he falls. After landing, the player must then fall off the Comet Observatory, and Luigi will be lifted back to the Planet of Trials. The game will not allow Luigi to fly on this planet, but the music will still play for the power-up and Luigi will have the appearance of his powered-up form.
There is also an alternate method to put Flying Luigi on the planet. The player must do the same thing as above, but after using the homing ground pound on the Luma, the player can touch the ground and collect the star. They must then fly back up to the planet; however, they cannot fly directly to the planet, like before, and fall, though, after flying beneath the observatory, Luigi will float back to the Planet of Trials. Once again, Luigi cannot fly on this planet.
It is possible to die in the Comet Observatory by doing this glitch.
Invincible Koopa Troopa shell
To perform this glitch, the player must go to Sea Slide Galaxy's mission Faster Than a Speeding Penguin. The player must go to the island with the red Koopa Troopa and collect its shell, then return to the racing penguins. There should be a Green Koopa Troopa. If Mario touches it while holding the shell, he will not take damage.
At the beginning of the Rolling Gizmo Galaxy, the player must ignore the Star Ball and spin a Goomba on the zigzag and knock it off the platform. Then, they must walk back to the ball, get on it, then go on the zigzag platform. The "dizzy Goomba" sound will still play, even though the Goomba is not there.
Mario is not weak
If Mario has only one life section left, he normally gets in a tired pose and his breathing voice effect can be heard. However, if the player activates the first-person view and then goes back to the normal view, Mario returns to his normal pose (although his breath can still be heard).
Non-flying Bee Mario
In the Sea Slide Galaxy, Bee Mario must be as close to the palm tree on the tower island as possible without standing on the white border. If done correctly, by flying upward and landing, the flying meter does not refill until the player moves away.
By standing as close to the edge of a platform with Goombas on it as possible, if a Goomba charges at the player, it does not injure Mario.
In the A Snack of Cosmic Proportions mission in the Good Egg Galaxy, the player must go to the capsule planet, open the hole, and joggle a Goomba inside. Then, they must jump in the hole and stand at the same spot as the Goomba, but not get hit. Going in the First-person-mode and looking it right in the face is possible. If the player goes away the Goomba can hit Mario again.
Recollecting Star Bits
Normally, when Mario shoots Star Bits, they they are gone forever, but if Mario transforms into Flying Mario, then he can recollect some of the star bits he shoots if is pressed and held and the player points the star cursor at Mario while he spins. This was an early element for attracting coins and star bits, but was left in the game for flying Mario.
Swim in freezing water
In the Freezeflame Galaxy, Mario (or Luigi) can swim and travel through freezing water without taking damage over time without an Ice Flower if a second player's Star Cursor makes him jump out of the water repetitively, within about 2 seconds of each jump.
Swimming in Loopdeeswoop Galaxy glitch
Players must go to Loopdeeswoop Galaxy and be next to the Coach. Then players must do a Backflip, spin and then ground pound to home onto the Coach and bounce off of them towards one of the middle spheres of the giant Shine Sprite-shaped hoop. If done correctly, Mario or Luigi will land on said sphere, and from there they can long jump and spin towards the main race track of the area, which can be swam in..
The player must go to Bowser Jr.'s Airship Armada, to the second cannon. The back of a ship can be seen to the right. They must aim the top of the mast and shoot Mario (or Luigi). This ship is nothing except an invisible wall on one side. Near the prow is an asteroid with a Sprangler and under the ship is a 1-Up Mushroom. The only way to escape is to exit the level.
When the player lands on the first planet, he or she must find the glass cage containing the Launch Star and Triple Jump off it. The second jump must land on top of the glass cage. Then the player should triple jump off the glass cage and spin at the highest point of the jump. If successful, the player will fall to Megaleg's moon, but it will not be activated, so the player can run all over Megaleg but the Bullet Bills will not be fired and the cogwheels will not move. However, if the player goes to the point they would have landed if they had used the Launch Star, the cutscene will play and Megaleg will be activated.
Unarmed Dreadnought cannons
In the Dreadnaught Galaxy's mission Dreadnought's Colossal Cannons, the player must first lose a life on the moving platforms section. Then, by jumping on the first moving platform as far to the right as possible, the platform moves, but the cannons do not fire.
Wrong planet vibration
This glitch can only be performed in the Deep Dark Galaxy's Bubble Blastoff mission. To do it, the player must either stand on the Starting Planet or shoot Mario to the Wooden Planet or the Gateway Galaxy Planet. Regardless of which of the planets Mario stands on, the player must go into first-person mode and then have Mario look up at the Watermelon Planet, which is positioned to the left of the Starting Planet. When the player looks up at this planet and starting from that time, they will be able to feel the Wii Remote vibrating as the three tennis balls inside the Watermelon Planet continuously bounce around and hit each other, even though the player is nowhere near the planet. This is odd as player will not feel the Wii Remote vibrate if Mario is standing on the Cheep Cheep Gambol Planet, which is even closer to the Watermelon Planet than any of the three aforementioned planets.