Here are some cheats and tips for the game Akuji: The Heartless.
Debug mode:
Pause game play, then hold L2 or R2 and press Left, Up(2), Triangle,
Right, Square, Left, Triangle, Up, Down, Right(2).
Invincibility:
Pause game play, then hold L2 or R2 and press Right(2), Left, Triangle,
X, Up, Circle, Left.
Unlimited Spirit Spells when acquired:
Pause the game, then hold L2 or R2 and press Left, Triangle, Left(2),
Circle, Left, Triangle, Right, Circle, Up(2), Down.