Various cheats
     Type at the car select screen:

Code                    Effect
GLORIOUS                Cheats Enabled
ICECREAM                Play as Sweet Tooth
BIGBOY                  Play as Minion

Type while playing:

Code                    Effect
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