GAME CHEATS

Complete Crack of doom once to unlock three new characters

(Make sure you have already completed game first)
On pause hold both triggers and press Y, Up,  Y, Down

(Make sure you have already completed game first)
On pause hold both triggers and press B, B, X, X

(Make sure you have already completed game first)
On pause hold both triggers and press  Down, X, Up, B

(Make sure you have already completed game first)
On pause hold both triggers and press B, B, Down, X

(Make sure you have already completed game first)
On pause hold both triggers and press Up, Down, Y, B

(Make sure you have already completed game first)
On pause hold both triggers and press X, Down, Y, A

(Make sure you have already completed game first)
On pause hold both triggers and press B, X, B, Up