Batman: Arkham City - Wikipedia

Batman: Arkham City (Video Game 2011) - IMDb

Wikipedia page for Batman: Arkham right now lol : r/BatmanArkham

Batman: Arkham VR - Wikipedia

Batman: Gotham by Gaslight - Wikipedia

Batman: Vengeance - Wikipedia

Batman: Arkham Unhinged - Wikipedia

AoM: Video Games: Batman: Arkham City (PC) (2011)

The batman Arkham wiki was not lying when it said that Jokers design in Arkham knight looked quite different to his appearance in Arkham asylum, then again that was back in 2009

The Batman (film) - Wikipedia

Batman: Arkham City Sells 12.5 Million Units, Rakes In More Than $600 Million

Batman: Arkham City Armored Edition - Cemu Wiki

Batman: Arkham Origins Blackgate - Wikipedia

Batman: Gotham City Escape - Coasterpedia - The Roller Coaster and Flat Ride Wiki

Batman: Arkham Origins, Batman Wiki