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