Complete the indicated task to unlock the corresponding costume.

Costume	How to unlock
Batman Legends Pack	Available with Walmart (North America), JB Hi-Fi (Australia) pre-order.
Blackest Night	Earn Prestige in Multiplayer mode.
Dark Knight	Complete all Dark Knight Challenges.
Deathstroke	Available with Gamestop, Best Buy, Target, Walmart, or Amazon pre-order; or can be purchased.
Infinite Earths Pack	Must be purchased.
Injustice	Earn all Medals in Challenge mode.
Knightfall Pack	PlayStation3 exclusive pre-order bonus.
New 52 Graphic	Capture every Most Wanted target.
New Millenium Pack	Must be purchased.
Noel	Find all Enigma Datapacks.
One Million	Download the free DLC, then register with WBID.