Infinite health
At the screen with the "Story Mode" and "Challenge Mode" options, hold L + R and press Up, Right, Up, Left, Down, Left, Down, Right. If you entered the code correctly, a message will appear.

Infinite combo meter
At the screen with the "Story Mode" and "Challenge Mode" options, hold L + R and press Left, Right, Down, Up, Up, Down, Right, Left. If you entered the code correctly, a message will appear.

All upgrades
At the screen with the "Story Mode" and "Challenge Mode" options, hold L + R and press Down, Up, Down, Left, Down, Right, Up, Down. If you entered the code correctly, a message will appear.

All bonuses
At the screen with the "Story Mode" and "Challenge Mode" options, hold L + R and press Left, Down, Left, Right, Left, Left, Down, Right. If you entered the code correctly, a message will appear.

Dark Knight difficulty setting
At the screen with the "Story Mode" and "Challenge Mode" options, hold L + R and press Right, Up, Up, Right, Left, Down, Right, Up. If you entered the code correctly, a message will appear.

Making Of Sin Tzu
Defeat Sin Tzu at the end of the game.

Alternate costume
Successfully complete the game under the easy difficulty setting.