Enter the following codes at the "Press Start" screen. A message will appear to confirm correct code entry.
Unlimited Health:
Hold L + R and press Up, Right, Up, Left, Down, Left, Down, Right
All Upgrades:
Hold L + R and press Down, Up, Down, Left, Down, Right, Up, Down
All Bonuses:
Hold L + R and press Left, Down, Left, Right, Left, Left, Down, Right
Unlimited Combo Meter:
Hold L + R and press Left, Right, Down, Up, Up, Down, Right, Left
Dark Knight Difficulty Setting:
Hold L + R and press Right, Up, Up, Right, Left, Down, Right, Up
Unlock the Making Of Sin Tzu:
Defeat Sin Tzu at the end of the game.
Alternate Costume:
Successfully complete the game under the easy difficulty setting.
