Unlock All Cheats
Same as above: L2, R2, L2, R2, SQUARE, SQUARE, CIRCLE, CIRCLE.
All Power Moves Unlocked
When you are the Batman: Vengeance title screen enter: L1, L1, R2, R2, L2, R2, L1, R1.
Same as above: CIRCLE, SQUARE, CIRCLE, SQUARE, L1, R1, L2, R2.
Same as above: SQUARE, CIRCLE, SQUARE, CIRCLE, L2, R2, R2, L2.
Unlimited Batarangs and electric Batarangs
While at the main menu, enter L1, R1, L2, R2. You'll hear confirmation by a sound.