Super Meat Boy

Defeat Brownie in a race.

Complete the indicated task to unlock the corresponding character.

4 Color Meat Boy: Collect 80 bandages.
4Bit Meat Boy: Collect 60 bandages.
8Bit Meat Boy: Collect 40 bandages.
Alien Hominid: Collect 30 bandages; Xbox 360 version only.
Captain Viridian: Collect 90 bandages; PC version only.
Commander Video (Bit Trip): Complete the Warp Zone in World 1.
Flywrench: Complete The Fly Guy! Warp Zone in World 4-18.
Gish: Collect 10 bandages; Xbox 360 version only.
Goo: Collect 10 bandages; PC version only.
Jill (Mighty Jill Off): Complete the Warp Zone in World 2.
Josef: Collect 30 bandages; PC version only.
Meat Ninja: Have 100% game completion. Note: Leaderboards will be disabled while playing as this character.
Mr. Minecraft: Collect 100 bandages; PC version only.
Naija: Collect 50 bandages; PC version only.
Ninja (N+): Collect 100 bandages; Xbox 360 version only.
Ogmo (Jumper): Complete The Jump Man! Warp Zone in World 3-16.
Pink Knight (Castle Crashers): Collect 90 bandages; Xbox 360 version only.
Runman: Collect 70 bandages; PC version only.
Spelunky: Collect 70 bandages; Xbox 360 version only.
The Headcrab: Collect 10 bandages; PC version only.
The Kid (I Wanna Be the Guy): Complete The Guy! Warp Zone in World 5-7.
Tim (Braid): Collect 50 bandages; Xbox 360 version only.

Kill Meat Boy immediately upon starting a level. During the split second in which Meat Boy is forming again, switch characters. This should freeze the timer at 0:00.

Defeat the Boss of any chapter. Replay the levels in that chapter to randomly encounter a glitched version of Bandage Girl. Reach her to unlock a new Glitch level in that chapter.

Defeat the Boss at the end of the Salt Factory. Then, press RB(3), B(3), X at the character selection screen. Select any character except Gish or Alien Hominid.