Alternate Costumes
Note: Some costumes must be unlocked through external means. In other words, they are only available through pre-orders or are exclusive to DLC packs. These cannot be unlocked within the game, though they may become available for purchase later.
4/22/13: Lobo DLC Added
5/09/13: Batgirl DLC Added
Be sure to check out the Injustice: Gods Among Us review and RadarPlays - Injustice: Gods Among Us if you haven't already.
Ares Regime
Unlocked through Hall of Justice Archives: 1 Armory Key
Aquaman Flashpoint
Season Pass
Bane Regime
Unlocked through Hall of Justice Archives: 1 Armory Key
Bane Knightfall
Playing Injustice: Gods Among Us (iOS)
Batman Insurgency
Unlocked through Hall of Justice Archives: 1 Armory Key
Batman Arkham City
Wal-Mart Pre-Order
Batman Beyond
Playing Injustice: Gods Among Us (iOS)
Batman Blackest Night
Best Buy Pre-Order
Black Adam Regime
Unlocked through Hall of Justice Archives: 1 Armory Key