Batman: Arkham Asylum - Wikipedia

How long is Batman: Arkham Asylum?

Batman: Arkham City - IGN

In Batman: Arkham City (2011), you can find Harley Quinn's outfit from Batman: Arkham Asylum (2009) in Joker's Fun House, complete with Warden Sharp's ID tag. : r/GamingDetails

The biggest games of our lifetime #9: 'Batman: Arkham Asylum

Batman Arkham Asylum is the mother of superhero games

My favourite intro to any game.ever. (Batman Arkham Asylum) : r/gaming

Beat Down, Arkham Wiki

Middle Hotel - Batman Arkham Origins Guide - IGN

Batman Arkham Asylum Xbox 360 + Road To Arkham Mini Comic Xbox.. - Complete CIB 788687200660

Review: 'Batman: Arkham Asylum' is 'best superhero game ever made' – The Mercury News