At the main menu, press X, Y, B(2), Y, X, L(2), R(2), Up, Down, Left, Right, Start, Select. If you entered the code correctly, you will hear a sound.
+3 million Studs
At the main menu, press Up(2), B, Down(2), X, Left(2), Y, L, R, L, R, B, Y, X, Start, Select. If you entered the code correctly, you will hear a sound.
All characters
At the main menu, press X, Up, B, Down, Y, Left, Start, Right, R(2), L, R(2), Down(2), Up, Y(3), Start, Select to unlock all characters. If you entered the code correctly, you will hear a sound.
All episodes and Free Play mode
At the main menu, press Right, Up, R, L, X, Y, Right, Left, B, L, R, L, Down(2), Up, Y(2), X(2), B(2), Up(2), L, R, Start, Select to unlock all episodes and Free Play mode. If you entered the code correctly, you will hear a sound.
All extras
At the main menu, press Up, Down, L, R, L, R, L, Left, Right, X(2), Y(2), B(2), L, Up, Down, L, R, L, R, Up(2), Down, Start, Select to unlock all extras. If you entered the code correctly, you will hear a sound.
Character Codes
Use the Enter Code Menu on the Computer in the Batcave
Password
Effect
ZAQ637
Unlock Alfred Pennyworth
JKR331
Unlock Batgirl
BDJ327
Unlock Bruce Wayne
M1AAWW
Unlock Classic Catwoman
HJK327
Unlock Clown Goon
DDP967
Unlock Commissioner Gordon
HGY748
Unlock Fishmonger
XVK541
Unlock Freeze Girl
NJL412
Unlock Freeze Henchman
UTF782
Unlock Joker Goon
YUN924
Unlock Joker Henchman
MVY759
Unlock Nightwing
CCB199
Unlock Tropical Joker
Unlock "Villain Hunt" minigame
To unlock the Villian Hunt minigame, you need to complete all three villian chapters which are accessible from Arkham Asylum.
Unlock Azrael and Huntress
To unlock Azrael and Huntress, you need to finish the entire game (all three chapters). After the game's ending credits, return to the batcave and both characters will be unlocked and made available to purchase.
Unlockable
How to Unlock
Azrael (1,500,000 studs)
Finish the game
Huntress (200,000 studs)
Finish the game
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)