Type at the car select screen
GLORIOUS - Cheats Enabled

ICECREAM - Play as Sweet Tooth

BIGBOY - Play as Minion

Type during gameplay
GLORIOUS - Cheats Enabled

DIVINE - God Mode

ALLUCANEAT - Eternal Life

DOUBLEDOWN - Supercharged Weapons

HOLYSMOKES - Infinite Weapons

SLAMFEST - Super Slam

GIMMEMORE - Weapons Added

2HOT - Homing Napalm

CUSUCKA - Mega Guns

FRAMERATE - Display framerate

While playing, press these keys in rapid succession
D,U,R,L,U,U,D,D - Soul sold (trade weapons for health)

L,R,U - Freeze Burst

R,L,D - Mine

R,L,U - Napalm

U,U,R - Shield

U,U,L - High Jump

L,R,D - Rear Attack

R,D,L,U - Cloaking

U,D,U,U,Space - Minion Attack

Type at the level select screen in multi-player mode:
DASBAK - Net Cheats Enabled

SLEUTH - Sneak Peeks

JMSWAMP - Suicide Swamp Level

TMBURBS - Cyburbia Level

TMROOF - Rooftops Level