Wanting to make sure she can be as close to his madness as possible, she inserted herself as an inmate in Arkham Asylum ... persecuted by both the Asylum and Batman. This invariably leads to ...

Having a Batman: Arkham Knight ... "Overgrown, abandoned, the inmates set free, madness could never be held in me." To solve this, you'll need to scan Arkham Asylum, but finding it is tricky.

Batman: Arkham Asylum's final boss fight may not be all that special on its own merit, but its role in Rocksteady's trilogy ...

Near the end of The Batman, there’s a short scene in which the Riddler, locked up in Arkham Asylum, has a conversation with another inmate. While the movie doesn’t explicitly say so ...