It’s official: those psychotic bats and jokers are clinically insane. Gotham City Impostors will soon be receiving a new map based in Arkham Asylum, free of charge. The new map brings the battle behind the fences of the iconic asylum for the criminally insane, appearing a lot brighter and noticeably different from the version seen in Batman’s recent retail games. The map is planned to launch May 16, 2012, super criminals not included.

Source: Joystiq