When you battle 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 from Batman: Arkham Asylum.
Batman: Arkham City reference
During the introduction for level 4, "Arkham Assignment", Vicki Vale refers to a failure to have the inmates locked up in a walled off area of Gotham City by the mayor. Select level 4, "Asylum Assignment", and listen when Vicki Vale says "Hey, at least the mayor's plan to let them loose in some vast, walled off area in the heart of the city got put on hold. Now, that would've never have ended well" in the news report.
Cheat Codes
Pause game play, select the "Extras" option, then "Enter Code". Then, enter one of the following codes to activate the corresponding cheat function.
Effect
Code
Characters
Alfred Pennyworth
ZAQ637
Batgirl
JKR331
Bruce Wayne
BDJ327
Catwoman (classic)
M1AAWW
Clown Goon
9ZZZBP or HJK327
Commissioner Gordon
DDP967
Fishmonger
HGY748
Freeze Girl
XVK541
Freeze Henchman
NJL412
Joker Goon
UTF782
Joker Henchman
YUN924
Lexbot
W49CSJ
Mad Hatter
JCA283
Man-Bat
NYU942
Military Policeman
MKL382
Mime Goon
ZQA8MK
Nightwing
MVY759
Penguin Goon
NKA238
Penguin Henchman
BJH782
Penguin Minion
KJP748
Poison Ivy Goon
GTB899
Police Marksman
HKG984
Police Officer
JRY983 or V9SAGT
Riddler Goon
Q285LK
Riddler Henchman
XEU824
S.W.A.T.
HTF114
Sailor
NAV592
Scientist
JFL786
Security Guard
PLB946
The Joker (tropical)
CCB199
Two-Face Goon
95KPYJ
Yeti
NJL412
Vehicles
Bat-Tank
KNTT4B
Bruce Wayne's Private Jet
LEA664
Catwoman's Motorcycle
HPL826
Garbage Truck
DUS483
Goon Helicopter
GCH328
Harbor Helicopter
CHP735
Harley Quinn's Hammer Truck
RDT637
Harley Quinn's Motorbike
C79LVH
Mad Hatter's Glider
HS000W
Mad Hatter's Steamboat
M4DM4N
Mr. Freeze's Iceberg
ICYICE
Mr. Freeze's Kart
BCT229
Penguin Goon Submarine
BTN248
Police Bike
LJP234
Police Boat
PLC999
Police Car
KJL832
Police Helicopter
CWR732
Police Van
MAC788
Police Watercraft
VJD328
Riddler's Jet
HAHAHA
Robin's Submarine
TTF453
The Joker's Van
JUK657
Two-Face's Armored Truck
EFE933
Zoo Sweeper
DWR243
Game play
Beep Beep
ZHAXFH
Character Studs
TPJ37T
Disguises
BWQ2MS
Extra Hearts
4LGJ7T
Extra Toggle
7TXH5K
Fall Rescue
TPGPG2
Gold Brick Finder
MBXW7V
Minikit Finder
LRJAG8
Peril Finder
RYD3SJ
Red Brick Finder
5KKQ6G
Regenerate Hearts
ZXEX5D
Stud Magnet
MNZER6
Studs X2
74EZUT
Super Build
JN2J6V
Vine Grapples
JXN7FJ
Red Brick Minikit finder
This costs 50,000 studs to purchase. In Gotham Park near the park, play the mini game with the boats. Shoots the subs with your boat.
Red Brick X2
Locate 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 receive the red brick x2.
Superman theme music
When you fly as Superman outside of a level, the theme from the Superman movie will play.
Batman: Arkham Asylum referenc...