Enter Up, Square, Circle, X, Down as a code.Infinite ammunition
Enter L1, L2, X, R2, R1 as a code.Grenade bullets
Enter X, Circle, Square, L2, R1 as a code.One-shot kills
Enter Circle, L2, Down, R1, X as a code.All Acts unlocked
Enter R2, Right, L2, Up, Square as a code.All bonus features unlocked
Enter Left, R1, L1, Down, Circle as a code.Infinite first aid kits
When making the optical disc in Episode 2, if you type in the Chris Barnes code first, you will get a first aid kit. You can type it in as many times as desired.