During gameplay, press START and enter any of the following codes:

Half Damage - X, X, Y, Y, LEFT, LEFT, RIGHT, RIGHT, Y, Y, X, X

Bulletproof - LEFT, RIGHT, RIGHT, LEFT, X, Y, Y, X

Invincibility - LEFT, RIGHT, RIGHT, LEFT, LEFT, RIGHT, RIGHT, LEFT, LEFT, RIGHT, RIGHT, LEFT, X, X

Infinite Ammo - X, Y, X, Y, X, Y, X, Y, LEFT, Y, X, Y, X, Y, X, Y, X

One-Shot Kills - Y, LEFT, RIGHT, RIGHT, LEFT, Y, BLACK, WHITE, Y, X, X

M7 Turned Frag Launcher - BLACK, WHITE, RIGHT, RIGHT, LEFT, LEFT, RIGHT, RIGHT, WHITE, BLACK, X, Y

Crossbow Turned Frag Launcher - LEFT, RIGHT, RIGHT, LEFT, X, Y, BLACK, WHITE, X, Y, LEFT, RIGHT

Big Weapons - X, X, X, X, Y, Y, Y

Big Feet - RIGHT, RIGHT, RIGHT, LEFT, RIGHT, LEFT, RIGHT, LEFT, LEFT, LEFT

Skip Cut-Scene - BLACK, X, BLACK, Y, BLACK, LEFT, BLACK, RIGHT, BLACK, WHITE, WHITE, X, WHITE, Y, WHITE, LEFT, WHITE, RIGHT, X

Watch End Cinema - WHITE, BLACK, X, X, LEFT, BLACK, BLACK, X, X, WHITE, X