Batman: Rise of Sin Tzu

All Bonuses
Hold L + R, then enter: Left, Down, Left, Right, Left, Left, Down, Right.
(Thanks to chaos__dragon@hotmail.com)

All Upgrades
Hold L + R, then enter: Down, Up, Down, Left, Down, Right, Up, Down.
(Thanks to chaos__dragon@hotmail.com)

Alternate Costume
Defeat the game on easy mode.
(Thanks to chaos__dragon@hotmail.com)

Dark Knight Difficulty Setting
Hold L + R, then enter: Right, Up, Up, Right, Left, Down, Right, Up.
(Thanks to chaos__dragon@hotmail.com)

Unlimited Combo Meter
Hold L + R, then enter: Left, Right, Down, Up, Up, Down, Right, Left.
(Thanks to chaos__dragon@hotmail.com)

Unlimited Health
Hold L + R, then enter: Up, Right, Up, Left, Down, Left, Down, Right.
(Thanks to chaos__dragon@hotmail.com)

Unlock the Making of Sin Tzu
Defeat Sin Tzu at the end of the game.
(Thanks to chaos__dragon@hotmail.com)