Hugo Strange's Experiments - Batman: Arkham City (2011)

Now in charge of Arkham City, Strange continues his radical experiments into the workings of the human mind. During processing, Strange personally selects inmates that fit his criteria and has them taken away to his inmate Behavioral Analysis Unit.

No one knows what happens to the missing prisoners in that room except Strange himself. Sometimes they emerge lobotomized to roam the streets, but more often they are never heard from again. Some people believe that Strange brainwashes the missing thugs and turns them into his TYGER guards whereas others believe he has a deal with the Penguin and hands him them to use as target practice.