All Weapons Cheat 
     While playing, press WHITE, WHITE, R, R.

Decap Cheat 
     Kill enemies using your hands with WHITE, L, BLACK, R, X. You can
kill anyone instantly with this code in effect.

God Mode Cheat 
     While playing, press WHITE, L, BLACK, R, A.

Level Cheats 
     Skip  levels  by  entering  LEFT,  LEFT,  LEFT, LEFT, Y. Select a
different level using WHITE, L, L, L, WHITE, A

Looting Cheat 
     While playing, press BLACK, WHITE, R, L, Y

Size Modification Cheat 
     Change your size using these codes while playing:

     Small - BLACK, R, WHITE, L, A. Normal - BLACK, R, WHITE, L, X (or
B) Biggee - BLACK, R, WHITE, L, Y.

Unlimited Ammunition 
     While playing, press WHITE, L, BLACK, R, Y.

Unlimited Time (KAOS Mode) 
     While playing, press WHITE, L, BLACK, R, B.

Unlock Bull (KAOS Mode) 
     While playing KAOS Mode, press RIGHT, RIGHT, RIGHT, RIGHT, A.

Unlock Freak (KOAS Mode) 
     While playing KAOS Mode, press RIGHT, RIGHT, RIGHT, RIGHT, B.

Unlock Spanky (KAOS Mode) 
     While playing KAOS Mode, press RIGHT, RIGHT, RIGHT, RIGHT, Y.

Weapon Cheats 
     The  weapon  codes are easy to decipher once you have the pattern
down! Enter them while playing to get them:

Pistol - LEFT, RIGHT, DOWN, WHITE, Y 
Tazer - LEFT, RIGHT, DOWN WHITE, B 
Pepper Spray - LEFT, RIGHT, DOWN WHITE, X 
Tear Gas - LEFT, RIGHT, DOWN WHITE, A 

Shotgun - LEFT, RIGHT, DOWN, L, Y 

Minigun - LEFT, RIGHT, DOWN, BLACK, Y 
Flamethrower - LEFT, RIGHT, DOWN, BLACK, B 
Grenade Launcher - LEFT, RIGHT, DOWN, BLACK, X 
Rocket Launcher - LEFT, RIGHT, DOWN, BLACK, A 

AK47 - LEFT, RIGHT, DOWN, R, Y 
M16 - LEFT, RIGHT, DOWN, R, B 
Grenade - LEFT, RIGHT, DOWN, R, X 
Molotov Cocktail - LEFT, RIGHT, DOWN, R, A