Pause the game, select the "Extras" option, and choose the "Enter Code" selection. Then, enter one of the following codes to activate the corresponding cheat function:
|2X Stud Multiplier||74EZUT|
|Gold Brick Finder||MBXW7V|
|Minikit Piece Finder||LRJAG8|
|Red Brick Finder||5KKQ6G|
|Harley Quinn's Motorbike||C79LVH|
In Gotham Park near the park, play the mini-game with the boats. Shoot the subs with your boat to unlock the Red Brick Minikit finder. You can purchase it for 50,000 Studs.
Find the Remote Bat Computer near the police station. Turn left, and you will see a mini-game. Play the game, and smash the cars with your hammer car to unlock the Red Brick X2.
When you fight the Prototype LexBot near the end of Level 9, the robot runs into the walls and can be hurt just like Bane and the Titan Thugs in Batman: Arkham Asylum.