Beat all three sections of Level 1 on normal or higher difficulty
Beat all three sections of Level 2 on normal or higher difficulty
Beat all three sections of Level 3 on normal or higher difficulty
Beat all three sections of Level 4 on normal or higher difficulty
Beat all three sections of Level 5 on normal or higher difficulty
Beat the Main Boss on normal or higher difficulty
Beat the game on Normal difficulty
Beat the game on Hard difficulty
Beat the game on Brutal difficulty
Complete all 10 rounds of 1 player duel mode on Normal difficulty
Complete all 10 rounds of 1 player duel mode on Hard difficulty
Complete all 10 rounds of 1 player duel mode on Brutal difficulty
Complete any level with the Normal hand weapon equipped
Complete any level with the Crusher hand weapon equipped
Complete any level with the Saw hand weapon equipped
Complete any level with the Launch hand weapon equipped
Complete any level with the Laser hand weapon equipped
Complete any level with the Fire Spray hand weapon equipped
Complete any level with the Normal body equipped
Complete any level with the Lobster body equipped
Complete any level with the Insect body equipped
Complete any level with the Frog body equipped
Complete any level with the Big Booster body equipped
Complete any level with the Quasimodo body equipped
Complete any level with the Jogging legs equipped
Complete any level with the Spiked legs equipped
Complete any level with the Somersault legs equipped
Complete any level with the Tank legs equipped
Complete any level with the Big Foot legs equipped
Complete any level with the Pneumatic legs equipped