RESIDENT EVIL 2 DUAL SHOCK
Books: Playstation Secret Codes - Secret Codes 2003
Extreme Battle Mini Game
To get Extreme Battle, you must complete the game in all four scenarios.
When the game is completed, a screen will appear saying a mini game is
unlocked. Save your data. There will be a save called "Ex. Battle 1."
Load it. You will come to a screen which says Extreme Battle, and you
can play this mini game, starting with Claire and Leon. When you beat
it with them other characters will become avalible.
Unlimited Ammo
During a game, push Select to open the options menu. Choose Key
Configuration and hold R1 while pressing the SQUARE button [ten
times]. When activated, the Auto or Manual setting should turn red.