Comet Medal

Not to be confused with Star Medal.

Comet Medal
First appearance	Super Mario Galaxy 2 (2010)
Latest appearance	Super Mario Galaxy + Super Mario Galaxy 2 (2025)
Effect	Makes a Prankster Comet appear in a galaxy (Galaxy 2); raises the Skill levels of characters (Puzzle & Dragons)
Comparable Ace Coin Advance Coin Color coin Dragon Coin Green Star KONG Letters Letter Block Musical Coin Pauline's lost items Present (Mario vs. Donkey Kong) Red Coin Smiley Flower Special Heart Star Coin Star Medal

“Collect many ? Comet arrive! First time in galaxy... Always one somewhere! Look hard. Find!”

—Whittle, Super Mario Galaxy 2

Comet Medals are items that appear in Super Mario Galaxy 2. They are white octagonal coins with a golden lining and a picture of a golden comet imprinted on them. Collecting enough Comet Medals makes Prankster Comets appear, like the Prankster Comets in the first game. They are found in the first mission of every galaxy, usually in hard to reach places or requiring the use of a power-up. Once collected, if the player re-enters the level, the Medal appears to be a clear blue silhouette of the original. It can still be collected, and by doing so, it is temporarily added to the total until exiting the level by any means.

There are 49 Comet Medals total, but not every galaxy has a Prankster Comet, even after every Comet Medal has been collected. The counter can temporarily increase up to 50 if a previously-collected Comet Medal is picked up again on a repeat visit to the stage after collecting all the other medals.

Comet Medals also appear in Puzzle & Dragons: Super Mario Bros. Edition. They raise the Skill levels of both forms of Rosalina and all types/forms of Cheep Cheeps and Bloopers from levels 1-4, while Grand Comet Medals raise from levels 5-7.

Locations

World 1
Galaxy	Location	Image
Sky Station Galaxy	High above the cylindrical planet with gray platforms rotating around it. It opens Peewee Piranha's Speed Run.
Yoshi Star Galaxy	On a small green hill in the area where the player first obtains Yoshi. It opens Spiny Rainbow Romp.
Spin-Dig Galaxy	Next to the right-most pillar on the Drill Zone Planet. It opens Digga-Leg's Daredevil Run.
Fluffy Bluff Galaxy	Above a column of coins on the Pond Planet. Cloud Mario is needed, or a triple jump or back-flip and spin at the apex of the jump, Fluffy Bluff has no Prankster Comet of its own until the Green Stars are unlocked.
Flip-Swap Galaxy	On a blue platform near the last Chomp. It opens Purple Coin Flip 'n' Sprint.
Rightside Down Galaxy	Between two Thwomps in an upside down section, just after the Chomps, Rightside Down has no Prankster Comet of its own until the Green Stars are unlocked.
Bowser Jr.'s Fiery Flotilla	Above the Thwomp near the beginning of the stage. It unlocks Fiery Flotilla Speed Run.
World 2
Galaxy	Location	Image
Puzzle Plank Galaxy	Off to the side of a wooden platform, just before two Grinders cut off a vertical wall, which creates an area that Mario must wall-kick up. It unlocks Purple Coin Shadow Vault.
Hightail Falls Galaxy	Near the end of the level right after the Hungry Luma. It unlocks Hightail Falls Speed Run.
Boulder Bowl Galaxy	Right at the beginning of the level inside the purple crystal. Rock Mario is needed. It unlocks Rolling Crabber Romp.
Cosmic Cove Galaxy	Inside a large shell-shaped structure underwater, near the button that freezes the entire area, Cosmic Cove has no Prankster Comet of its own until the Green Stars are unlocked.
Wild Glide Galaxy	Obtained after going through the five gates, Wild Glide has no Prankster Comet of its own until the Green Stars are unlocked.
Honeybloom Galaxy	On a small platform guarded by a Choppah, Honeybloom has no Prankster Comet of its own until the Green Stars are unlocked.
Bowser's Lava Lair	Reached by wall-jumping or Backflipping off a Whomp. It unlocks Lava Lair Speed Run.
World 3
Galaxy	Location	Image
Tall Trunk Galaxy	On the Log Planet. It unlocks Tall Trunk's Purple Coin Slide.
Cloudy Court Galaxy	Near the end of the level inside the crushing wall. It unlocks The Shadow Lining.
Haunty Halls Galaxy	Over a large gap, just after a green pipe. It unlocks Spooky Cosmic Clone Chase.
Freezy Flake Galaxy	Hidden beneath some Brick Block-shaped snow, on the third planet after the slide, Freezy Flake has no Prankster Comet of its own until the Green Stars are unlocked.
Rolling Masterpiece Galaxy	Near the end on a platform about to be cut by Grinders. It unlocks Masterpiece Speed Run.
Beat Block Galaxy	Near the beginning on top of an orange Beat Block. It unlocks Silver Stars in Double Time.
Bowser Jr.'s Fearsome Fleet	On the Airship with the Hammer Bros, just before Mario fights Megahammer. It unlocks Megahammer's Daredevil Bash.
World 4
Galaxy	Location	Image
Supermassive Galaxy	At the start of the level, over a large gap in the middle of an arc of coins, near the large spinning coin and a Big Goomba. It unlocks Big Wigglers Speed Run.
Flipsville Galaxy	On the first planet on the underside of it. It unlocks Purple Coin Spin Speed Run.
Starshine Beach Galaxy	Only in the underwater area of the mission "Surf, Sand, and Silver Stars", between two Gringills. It unlocks Purple Coin Beach Dash.
Chompworks Galaxy	At the beginning of the level, over the Chomps. It unlocks Cosmic Clones in the Chompworks.
Sweet Mystery Galaxy	In a secret platform that appears with Bulb Yoshi. It unlocks Bulb Berry's Purple Coin Glow.
Honeyhop Galaxy	In a set of two walls. It requires wall-jumping, Honeyhop has no Prankster Comets of its own until the Green Stars are unlocked.
Bowser's Gravity Gauntlet	Near the checkpoint flag in the castle. On top of the Brick Block. It unlocks Gravity Star Speed Run.
World 5
Galaxy	Location	Image
Space Storm Galaxy	Between to an electric fence and set of platforms going down, Space Storm has no Prankster Comets of its own until the Green Stars are unlocked.
Slipsand Galaxy	On a small patch of solid ground where the sand river bends. It unlocks Squizzard's Daredevil Run.
Shiverburn Galaxy	Hanging over the moving stone platforms of the lava planet. It unlocks Octo-Army Icy Rainbow Romp.
Boo Moon Galaxy	In the swamp right next to the launch star, Boo Moon has no Prankster Comets of its own until the Green Stars are unlocked.
Upside Dizzy Galaxy	Under an electrified fence and over a moving platform, Upside Dizzy has no Prankster Comets of its own until the Green Stars are unlocked.
Fleet Glide Galaxy	Obtained after flying through the five gates, Fleet Glide has no Prankster Comets of its own until the Green Stars are unlocked.
Bowser Jr.'s Boom Bunker	On the mine-lined blue row on the spindly planet. It unlocks Boomsday Machine Daredevil Run.
World 6
Galaxy	Location	Image
Melty Monster Galaxy	On one of the non-burned planetoids hanging over the Magmaw planet, Melty Monster has no Prankster Comets until the Green Stars are unlocked.
Clockwork Ruins Galaxy	Hanging above the cogs rolling down the first slope. It unlocks The Adventure of the Purple Coins.
Throwback Galaxy	Found on the overhang under the giant pole, where the Shoot into the Wild Blue star from Super Mario 64 used to be. It unlocks Whomp Silver Star Speed Run.
Battle Belt Galaxy	Right above a lava pool on the burn bit planet. It unlocks Mini-Planet Daredevil Run.
Flash Black Galaxy	Found at the top left corner of the planet where Yoshi is found. It unlocks Dark Octo-Army Romp.
Slimy Spring Galaxy	After sliding down the water slide, in the first room with Snoodles, the Comet Medal is located in a small alcove on the left side of the room, just before the next tunnel, Slimy Spring has no Prankster Comet of its own until the Green Stars are unlocked.
Bowser's Galaxy Generator	With Yoshi's assistance, the Comet Medal can be found on the lava on the left moving path, next to two flowers. It unlocks Bowser's Big Bad Speed Run.
World S
Galaxy	Location	Image
Mario Squared Galaxy	On Mario's left foot, on disappearing platforms. It unlocks Luigi's Purple Coin Chaos.
Rolling Coaster Galaxy	On the expert path. After the Toad says "Experts stay right", go down the right path until seeing the Comet Medal and two Bob-ombs. It should be just before the other path crosses back into the course. It unlocks Purple Coins on the Rainbow Road.
Twisty Trials Galaxy	At the end of the second to last spinning block (Just before the star). It unlocks Turning Turning Double Time.
Stone Cyclone Galaxy	Right from the start, but also right above one of the platforms that move left and right (closest to the Black Hole). It unlocks Tox Box Speed Run.
Boss Blitz Galaxy	Underneath the King Kaliente battlefield. It unlocks Throwback Throwdown Speed Run.
Flip-Out Galaxy	Above the first blue platform when the player is in the second area of spikes. It unlocks Cosmic Clone Wall Jumpers.
Grandmaster Galaxy	Next to one of the platforms on the right side, in the area filled with Hammer Bros and Boomerang Bros. It unlocks The Perfect Run.

Gallery

• 

  Mario near a clear Comet Medal from Space Storm Galaxy in Super Mario Galaxy 2

• 

  UI sprite of a Comet Medal from Super Mario Galaxy 2

• 

  Puzzle & Dragons: Super Mario Bros. Edition

Naming

Internal names

Game	File	Name	Meaning
Super Mario Galaxy 2	ObjectData/TicoCoin.arc	TicoCoin	Luma Coin
	SystemData/ObjNameTable.arc/ObjNameTable.tbl	チココイン (Chiko Koin)

Names in other languages

Language	Name	Meaning	Note(s)	Ref.
Japanese	彗星メダル Suisei Medaru	Comet Medal		[?]
Chinese (Simplified)	彗星奖章 Huìxīng jiǎngzhāng	Comet Medal
Chinese (Traditional)	彗星獎章 Huìxīng jiǎngzhāng	Comet Medal
Dutch	Komeetmedaille	Comet Medal		[?]
	Komeetmunt	Comet Coin		[?]
French	Médaille comète	Comet medal		[?]
German	Kometenmünze	Comet Coin		[?]
Italian	Medaglia Cometa	Comet Medal		[?]
Portuguese	Medalha de cometa	Comet medal
Spanish	Medalla de cometa	Comet medal		[?]

Notes

• When collected, the Comet Medal makes a similar sound effect to that of a Red Coin from Super Mario Sunshine, but on a different instrument.
• On the official Nintendo game overview page, Comet Medals are misspelled "Comet Metals."
• The Star Medals in Super Mario 3D Land feature a design similar to that of Comet Medals.