Earn bonus costume skins for playable characters by completing the following in-game requirements.

Costume	How to unlock
Aquaman	-
Flashpoint	Season Pass unlockable
Regime	Unlock in Archive using Armory Key (A1)
Ares	-
Regime	Unlock in Archive using Armory Key (A2)
Bane	-
Knightfall	Rate the Injustice iOS game
Regime	Unlock in Archive using Armory Key (A3)
Batman	-
Arkham City	Walmart pre-order exclusive
Batman Beyond	Obtain any Batman character card in the Injustice iOS game
Blackest Night	Best Buy pre-order exclusive
Insurgency	Unlock in Archive using Armory Key (A4)
New 52	Special Edition exclusive
Black Adam	-
Regime	Unlock in Archive using Armory Key (A5)
Catwoman	-
Arkham City	Walmart pre-order exclusive
Regime	Unlock in Archive using Armory Key (A6)
Cyborg	-
Regime	Unlock in Archive using Armory Key (B1)
Deathstroke	-
Flashpoint	Season Pass unlockable
Insurgency	Unlock in Archive using Armory Key (B2)
Doomsday	-
Regime	Unlock in Archive using Armory Key (B3)
Green Arrow	-
Arrow	Battle Arena unlockable
Insurgency	Unlock in Archive using Armory Key (B5)
Green Lantern	-
New 52	Complete a bonus battle in the Injustice iOS game
Regime	Unlock in Archive using Armory Key (B6)
Yellow Lantern	Win an online ranked match
Harley Quinn	-
Arkham	Obtain any Joker character card in the Injustice iOS game
Insurgency	Unlock in Archive using Armory Key (C1)
Hawkgirl	-
Regime	Unlock in Archive using Armory Key (C2)
Killer Frost	-
Regime	Unlock in Archive using Armory Key (C4)
Lex Luthor	-
Insurgency	Unlock in Archive using Armory Key (C5)
Kryptonite	Complete all S.T.A.R. Labs missions
Nightwing	-
New 52	Reach Level 30
Regime	Unlock in Archive using Armory Key (C6)
Raven	-
Regime	Unlock in Archive using Armory Key (D1)
Shazam	-
New 52	Complete all S.T.A.R. Labs Shazam missions
Regime	Unlock in Archive using Armory Key (D2)
Sinestro	-
Regime	Unlock in Archive using Armory Key (D3)
Solomon Grundy	-
Boss Grundy	Complete Classic Battle mode using any character
Red Son	Gamestop pre-order exclusive
Regime	Unlock in Archive using Armory Key (D4)
Superman	-
Godfall	Complete Story mode
New 52	Special Edition exclusive
Prison	Complete all battles in the Injustice iOS game
Red Son	Gamestop pre-order exclusive
Regime	Unlock in Archive using Armory Key (D5)
The Flash	-
Elseworld's Finest	Earn three stars in all S.T.A.R. Labs missions
New 52	Complete Speed Run Battle in Tournament mode using any character OR link your WB ID account
Regime	Unlock in Archive using Armory Key (B4)
The Joker	-
Arkham City	Walmart pre-order exclusive
Insurgency	Unlock in Archive using Armory Key (C3)
Wonder Woman	-
Flashpoint	Season Pass unlockable
New 52	Special Edition exclusive
Red Son	GameStop pre-order exclusive
Regime	Unlock in Archive using Armory Key (D6)