Resident Evil 2 Dual Shock Cheats
PS1 | Submitted by Adam H.Play as Chris and Ada
First you have to beat the game on "origional" mode. Then beat scenario B will an A ranking and you will get to play a new scenario called "Extreme Battle" where you have to get to the Police Precinct and find four bombs. Beat that and you will get Ada as a character. Beat it with her and you will get to play as Chris Redfield from the first Resident Evil.
(this only works with the Dual Shock Edition)
PS1 | Submitted by Adam H.Unlimited Ammo
During a game press select to go to the options screen. Go to Key Configuration and highlight Configuration A and hold R1 and press square 10 times. The word manual will turn red. You can also do this code in Extreme Battle, Hunk, and Tofu's games.