All Power Moves Unlocked:
To unlock all power moves, enter the following code at the title screen: L1, L1, R2, R2, L2, R2, L1, R1.

Unlimited Batlauncher:
To unlock the unlimited batlauncher, enter the following code at the main title screen: CIRCLE, SQUARE, CIRCLE, SQUARE, L1, R1, L2, R2.

Unlimited Handcuffs:
To unlock an unlimited supply of handcuffs, enter the following code at the title screen: SQUARE, CIRCLE, SQUARE, CIRCLE, L2, R2, R2, L2.

Unlock All Cheats:
To unlock all of the cheats in the game, enter the following code at the title screen: L2, R2, L2, R2, SQUARE, SQUARE, CIRCLE, CIRCLE.