Cheats for Super Puzzle Fighter 2 Turbo for PSX

At the player select screen, highlight Morrigan, press Down(13). Then, wait until the timer reaches ten seconds and press Circle. For player two, at the player select screen, highlight Felicia instead of Morrigan. Note: This code may only be enabled on versions of the game that were pressed on orange discs.

At the player select screen, highlight Morrigan, hold Select, and press Left(3), Down(3), Circle. For player two, at the player select screen, highlight Felicia, hold Select, and press Right(3), Down(3), Circle. Note: This code works in all modes except Street Puzzle mode.

At the player select screen, highlight Morrigan and hold Select, then highlight Lei Lei (Hsien-Ko) and press Circle. For player two, at the player select screen, highlight Felicia and hold Select, then highlight Hsien-Ko and press Circle. Note: This code works in all modes except Street Puzzle mode.

At the player select screen, highlight Morrigan and press Up(3), Left(3), Circle. For player two, at the player select screen, highlight Felicia and press Up(3), Right(3), Circle. Note: This code may only be enabled on versions of the game that were pressed on orange discs.

Choose your character, then hold L2 + R2 + Select, and choose your handicap. 
Now while keeping the buttons held, press one of the following buttons: 

Stage	Button

Dan	(None)
Ryu	Left
Chun-Li	Down
Ken	Right
Sakura	Triangle
Akuma	L1
Morrigan	Up
Donovan	Circle
Felicia	Square
Hsien-Ko	X
Devilot	R1

Complete all of the following tasks before reaching stage 7, without continuing:

Defeat an opponent within one minute in one round.
Have at least one Super Combo.
Have a maximum chain of 4 or more.
Have a maximum Power Gem of at least 20 units.