BioHazard 5th Anniversary Package Cheats

Equip the shotgun and go up to a zombie. Before it grabs you, aim up and fire. You should decapitate it, and you just saved some ammo.

*The game must have been beaten on Hard to work*

At the title screen press R1, L2, R2, L1, X, Triangle, X, Square (If entered correctly, you will hear a zombie moan.) Now while playing the game, hold R1 + R2 + L1 + L2, and press Select to change the difficulty.