Get a "True Villain" rank on all levels in the Villain storyline. To reach the mission, go to right of the Batcomputer. Go down the ramp, and pull the lever to get to the villains. Go through the door on the right, and look in the corner to reach the memorabilia room. Climb the ladder at the top to access the Arkham level.
Batcave Codes - Unlockable Characters and Vehicles
Access the computer in the Batcave and enter the following passwords in the "Enter Code" menu.
Password
Effect
ZAQ637
Alfred
KNTT4B
Bat-Tank
JKR331
Batgirl
LEA664
Bruce Wayne's Private Jet
M1AAWW
Catwoman (Classic)
HPL826
Catwoman's Motorcycle
HJK327
Clown Goon
HGY748
Fishmonger
XVK541
Freeze Girl
DUS483
Garbage Truck
GCH328
Goon Helicopter
CHP735
Harbor Helicopter
RDT637
Harley Quinn's Hammer Truck
UTF782
Joker Goon
YUN924
Joker Henchman
JCA283
Mad Hatter
HS000W
Mad Hatter's Glider
M4DM4N
Mad Hatter's Steamboat
NYU942
Man-Bat
MKL382
Military Policeman
ICYICE
Mr. Freeze's Iceberg
BCT229
Mr. Freeze's Kart
NKA238
Penguin Goon
BTN248
Penguin Goon Submarine
BJH782
Penguin Henchman
KJP748
Penguin Minion
GTB899
Poison Ivy Goon
LJP234
Police Bike
PLC999
Police Boat
KJL832
Police Car
CWR732
Police Helicopter
HKG984
Police Marksman
JRY983
Police Officer
VJD328
Police Watercraft
CRY928
Riddler Goon
XEU824
Riddler Henchman
HAHAHA
Riddler's Jet
TTF453
Robin's Submarine
HTF114
S.W.A.T.
NAV592
Sailor
JFL786
Scientist
PLB946
Security Guard
LEHH02
The Flash
JUK657
The Joker's Van
EFE933
Two-Face's Armored Truck
DWR243
Zoo Sweeper
Easy Studs
Successfully complete a level with The Joker. You should then have him in the prison. Go to the experiment room at the prison. Start zapping the Joker Henchmen that keep walking into the room. Zap the villain that follows you every so often. Every time you zap the villain that follows you, the Henchmen will give an increasing number of Studs after they are zapped and killed.
Getting "True Hero" and "True Villain" ranks
Collect coins in a level to completely fill the "True Hero" or "True Villain" bar to get the corresponding rank for that level.
James Bond created character
Use the following customizations:
Gloves: Caucasian
Face: Normal Caucasian
Belt: Black
Pants: Black
Arms: Black
Torso: Alfred Pennyworth
Hair: Short black
Weapon: Pistol
McDonald's Happy Meal Toy Cheats
This would be on the second level of the Bat Cave. There is a big computer in the middle of the screen above where the outfit changer is where you can enter the codes.
Password - Effect
ZAQ637 - Unlocks Alfred in Free Play
DPP967 - Unlocks Commissioner Gordon in Free Play
XVK541 - Unlocks Free Girl in Free Play
RDT637 - Unlocks Harley Quinn's Hammer Truck
XWP645 - Unlocks more Batarang Targets
BJH782 - Unlocks Penguin Henchman in Free Play
NJL412 - Unlocks Yeti in Free Play
Play as Hush
Rescue all 25 hostages to unlock Hush.
Play as Ras Al Ghul
Get a 100% game completion by assembling all Minikits to unlock Ras Al Ghul. Note: You must first spend 4 billion Studs to unlock the last data item after buying all other data items.
Superman (DC Comics) created character
Use the following customizations.
Arms: Blue
Belt: Red
Cape: Red
Face: Bruce Wayne
Gloves: Caucasion
Hair: Robin
Pants: Blue
Torso: Plain blue
Weapon: Batarang
Note: To create Supergirl, change the face to a woman's face and change hair to long blonde.
Tim Drake (Robin III) created character
Use the following customizations:
Gloves: Black
Face: Nightwing
Belt: Black
Pants: Red
Arms: Red
Torso: Robin
Hair: Short black
Weapon: Batarang
Unlockables from the McDonald's Toy Set Codes
Enter these codes (provided by the Lego Batman toys at McDonald's) at the cheat screen to unlock the following:
Password - Effect
BDJ327 - Bruce Wayne - (from Batman Batarang toy)
DDP967 - Commissioner Gordon - (from the Joker Helicopter toy)
XWP645 - More Batarang Targets - (from the Batboat toy)
MVY759 - Nightwing - (from Robin Grappling Hook toy)
KJP748 - Penguin Minion - (from the Penguin Submarine toy)
MAC788 - Police Van - (from the Batmobile toy)
CCB199 - The Joker (Tropical) - (from the Joker Surprise toy)
NJL412 - Yeti - (from Mr. Freeze Ice Blast toy)
Various Codes
Enter one of the following codes at the computer in the Batcave to unlock the corresponding option at the "Extras" menu. If you entered the code correctly, the name of the cheat will appear.
Bonus characters. Enter one of the following codes at the computer in the Batcave to unlock the corresponding character:
Character - Code
Bruce Wayne - BDJ327
S.W.A.T. - HTF114
Tropical Joker - CCB199
Yeti - NJL412
Wayne Manor bonus level
Get a "True Hero" rank on all levels in the Hero storyline. To reach the mission, go to where the vehicles are in the Batcave. Go to the far right, then down to the bottom. Step on the elevator to go to the memorabilia room. The Wayne Manor mission is in upper left corner.