options menu hold Up+Block+Run

The screen should shake once you hold it for like 2 seconds continuously and then you have access to the central cheat menu. One button fatalities, instant agressor and other unbalancing shit.

Does this work for XP too? I read that it does not work very well with XP1 Is that true...?

right click, properties, set Windows 95 compatibility on the .exe file.

the game is amazing, but in XP you'll need a patch to run it, and still it won't be running perfectly. the best way to play the game is downloading the psx ISO and run it in ecpsx, it will work correctly. in my pc it does.