Unlockable: Super Soviet Missile Master mini-game Finish level 1-5 and the Super Soviet Missile Master mini-game will be unlocked after the intermission sequence.
Unlockable: Minigames, Levels and Hats Set the player 1 name to "ROYGBIV"
Cheat: Hidden Hats In the Options Menu, where you can rename your alien, use the following names to unlock hidden hats for the 2 player game: cletus april superfly goodman grrl abe princess dandy
Unlockables: Head Gear Area 51 Hat: Get to level 3-1. Blond Hair: Beat the final boss using hard difficulty. Diamond Tierra: Beat Level 2-2 using hard difficulty. Jouster Hat: Beat Level 3-4 using hard difficulty. Private Eye Hat: Beat Level 3-2 using hard difficulty. Soviet Union Hat: Get to level 2-1.
