Did you know there’s a secret Easter egg in Batman: Arkham Asylum almost nobody found? If you place three explosive gels on a hidden wall in the Warden’s office, a secret room unlocks — and inside are blueprints for Arkham City itself. That means Rocksteady teased the next game’s title way back in Arkham Asylum! 🔔 Subscribe for more Batman Arkham secrets, hidden details & rare Easter eggs! #gaming #shorts #batman #batmanarkham #batmanarkhamasylum #batmanarkhamcity