Batman: Vengeance

Xbox

Cheat mode:
At the Main Menu, press L, R, L, R, X, X, Y, Y.

Unlimited electric Batarangs:
At the Main Menu, press L, R, B, White, L

Unlimited Batarangs:
At the Main Menu, pressL, R, White, Y

Bonus characters:
At the Main Menu, press Left, Right, Down, White, L + R, then press Start.

Thanks to Revolution readers Ryan Max and Doubly Dubious!