Suicide Squad: Kill Arkham Asylum

"Amanda Waller has taken control of the recently rebuilt Arkham Asylum, and her brutal tactics and merciless methods have led to the most secure Arkham Gotham has ever known. But when the cell doors open and the inmates are left in a free-for-all deathmatch, Waller's true intentions reveal themselves: identify the strongest, smartest, and most brutal inmates of the Asylum to serve her on Task Force X. Things are gonna get messy in this prequel to Rocksteady's Suicide Squad: kill The Justice League"--