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.
Red Brick and Character Codes
Pause the game to bring up the menu, select "Enter Code" and... enter code! Codes can be entered at any time, and are made available immediately. Remember that you only have to enter the codes once per save slot, but you have to re-enable them if you quit/restart.
Effect
Code
Attract Studs
MNZER6
Beep Beep
ZHAXFH
Character Studs
TPJ37T
Clown Goon
9ZZZBP
Disguises
BWQ2MS
Extra Hearts
4LGJ7T
Extra Toggle
7TXH5K
Fall Rescue
TPGPG2
Gold Brick Finder
MBXW7V
Harley Quinn's Motorbike
C79LVH
Lexbot
W49CSJ
Mime Goon
ZQA8MK
Minikit Piece Finder
LRJAG8
Peril Finder
RYD3SJ
Policeman
V9SAGT
Red Brick Finder
5KKQ6G
Regenerate Hearts
ZXEX5D
Riddler Goon
Q285LK
Studs x2
74EZUT
Super Build
JN2J6V
Two-Face Goon
95KPYJ
Vine Grapples
JXN7FJ
Red Brick Minikit finder
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.
Red Brick X2
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.
Batman: Arkham Asylum referenc...