Cheat codes:
     Enter these codes while playing the game:

Big head mode:                 Press Up on analog + Down on D-pad + X.
Avatar God mode:               Press Up on analog + Down on D-pad + A.
Victory Condtions:             Press Up on analog + Down on D-pad + B.
No brainer:                    Press Up on analog + Down on D-pad + Y.
Polska:                        Press Down on analog + Down on D-pad + X.
Heavy breathing:               Press Down on analog + Down on D-pad + A.
Rude mode:                     Press Down on analog + Down on D-pad + B.
Side scroller mode:            Press Down on analog + Down on D-pad + Y.
Mega head:                     Press Left on analog + Down on D-pad + X.
Stumpy:                        Press Left on analog + Down on D-pad + Y.
Clodhopper:                    Press Left on analog + Down on D-pad + B.
Team God mode:                 Press Left on analog + Down on D-pad + A.
Death mode:                    Press Right on analog + Down on D-Pad + A. 

Infinite ammunition:
     Shoot  all  of  your  bullets except one, then put in a new clip.
Your ammunition will be refilled, but you will not lose a clip. Repeat
this as many times as needed for an unlimited amount of ammunition.