- ALL MISSIONS:
AT CO-OP OR SINGLE PLAYER MISSION SELECT, PRESS UP, L1, DOWN, R1, LEFT, L1, RIGHT, R1, UP.
- INVINCIBLE:
AT IN-GAME OPTIONS SCREEN, PRESS UP, DOWN, LEFT, RIGHT, L2, R2.
- INFINITE AMMO:
AT IN-GAME OPTIONS SCREEN, PRESS LEFT, RIGHT, UP, DOWN, UP, DOWN, R2, L2.
