Kill 500 Enemies

Beat the game on Normal Difficulty

Beat the first Level

Try every character

Beat the Game on Hard

Beat the game without dying once on the save file

Destroy every ceiling turret in Stage 7

Don't destroy any bombers in Stage 10

Destroy every bomber in Stage 13

Don't get hit by any mines in Stage 17

Get through a whole level without getting hurt

Beat 50 Levels

Beat a level without killing any enemies

Don't touch the rising lava in hard mode

Jump over the first totem pole in Stage 2

Complete the game on Expert Mode!