8-Bit Galaxy

8-Bit Galaxy is the first galaxy of World S in Super Mario Galaxy 3. It is based upon the original Super Mario Bros.

Star 1: The Retro Road
Mario must make his way through a level exactly like World 1-1 from Super Mario Bros.

Secret Star 1: Mario and the Beanstalk
Mario must hit an invisible block containing a Beanstalk and climb it to reach a cloud where the Secret Power Star is found.

Star 2: Plumber in the Pipeway
Mario must make his way through a level exactly like World 1-2 from Super Mario Bros.

Secret Star 2: Welcome to the Warp Zone
Mario must use the platforms near the end to get to the top of the level and walk right where he will find the Secret Power Star in the same place the Warp Zone was in the original game.

Star 3: Dive into the 8-Bit Ocean
Mario must make his way through a level exactly like World 2-2 from Super Mario Bros.

Secret Star 3: Secret Underwater layer
Mario must find an orange pipe which will take Mario a secret area containing the the Secret Power Star.

Star 4: The Classic Castle
Mario must make his way through a level exactly like World 1-4 from Super Mario Bros and face 8-Bit Bowser at the end. Once 8-Bit Bowser is defeated a Toad will give Mario the Power Star.

Secret Star 4: In Another Castle
After beating 8-Bit Bowser, Mario must ignore the Normal Power Star and walk to the right where he will exit the castle and enter another castle where the Secret Power Star is found.

Speedy Comet (Red): The Retro Road Speed Run
Mario must beat "The Retro Road" in under 1 minute and 30 seconds.

Daredevil Comet (White): The Classic Castle Daredevil Run
Mario must beat "The Classic Castle" without getting hit.

Shadow Comet (Blue): Shadow Mario Does Some Plumbing
Mario must beat Shadow Mario to the Power Star in "Plumber in the Pipeway".

Fast-Foe Comet (Yellow): Fast-Foe Firebar Sweep
Mario must get to the power star in "The Classic Castle" with fast-foe enemies.

Purple Comet (Purple): Purple Coins in the Corals
Mario must collect 100 Purple Coins in "Dive into the 8-Bit Ocean".

Combo Comet (Pink): Gang of 8-Bit Goombas
Mario must defeat 20 8-Bit Goombas in under 2 minutes.

Flash Comet (Orange): Underground Flash
Mario must find the Power Star in "Plumber in the Pipeway" in the dark, wait for the flash.

Green Comet (Green): Green Stars

 * Green Star 1
 * Green Star 2
 * Green Star 3
 * Green Star 4
 * Green Star 5
 * Green Star 6
 * Green Star 7
 * Green Star 8
 * Green Star 9
 * Green Star 10
 * Green Star 11
 * Green Star 12
 * Green Star 13
 * Green Star 14
 * Green Star 15

Bosses

 * 8-Bit Bowser