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XBox - Batman - Vengeance cheats

Batman - Vengeance Cheat mode
Go to the main menu and enter the following button combinations on 
your Xbox controller to enable cheat mode:
Press L, R, L, R, X, X, Y, Y. 
If the code is accepted, you should hear a sound.

Unlimited batarangs and electric batarangs in Batman - Vengeance
Go to the main menu and enter the following button combinations on 
your Xbox controller to get infinite batarangs:
Press L, R, B, White, L.
If the code is accepted, you should hear a sound.

Unlock Bonus characters in Batman - Vengeance
Go to the main menu and enter the following button combinations on 
your Xbox controller to unlock bonus characters:
Press Left, Right, Down, White, L + R, then press Start.
If the code is accepted, you should hear a sound.