Pause the game and enter these codes:
Debug mode:
Hold L2 or R2 and press Left, Up, Up, Triangle, Right, Square, Left, Triangle, Up, Down, Right, Right.
Invicibility:
Hold L2 or R2 and press Right, Right, Left, Triangle, X, Up, Circle, Left.
Infinite spirit spells:
Hold L2 or R2 and press Left, Triangle, Left, Left, Circle, Left, Triangle,
Right, Circle, Up, Up, Down. Repeat to get new spells.
GameShark Codes
Enable All Levels800c4704000f Extra Healthd006981ea4c2 8006981e2400 Extra Spell Ammo80091c240001 Infinite Lives800803462400
Thanks to Revolution readers Michaelbk1, Treah, and Ivan Santos!