All Working Capcom vs. SNK Pro Cheats - Playstation

In-game reset
Hold [Start] + [Select] for three seconds during game play.

Shin Akuma
Highlight Akuma at the character selection screen, then hold [Start] and press any button.

Fight against Gouki as final Boss
Get 80 or more Groove Points by the end of the last regular fight with any combination of fighters to fight Shin Gouki as the final Boss in arcade mode.

Kyo: Different moves
The following trick requires two controllers. Go to training mode and select Kyo in Ex type. When fighting begins, have player two press [Start] and go to the training menu. Have first player on CPU then continue fighting. Look to where it says the character you are using, and it will not be on Ex. Use some of Kyo's moves and they will be different. For example, when you use Final Showdown it will be different.