Enter codes at the title screen:

• God Mode: Click Right Thumbstick, Click Left Thumbstick, RIGHT, LEFT, L, R, Click Right Thumbstick, Click Left Thumbstick, RIGHT, LEFT, L, R
• Infinite Ammo: BLACK, R, Y, WHITE, L, UP, BLACK, R, Y, WHITE, L, UP
• Acid Trip Mode: Up, Black, B, Left, Y, X , White, L, B , R
• Add weapons option when paused: UP, DOWN, LEFT, RIGHT, B, X, UP, DOWN, LEFT, RIGHT, B, X
• All Missions and Pictures: WHITE, BLACK, L, R, L, WHITE, WHITE, BLACK, L, R, R, BLACK