Batman: Arkham Asylum Game of the Year Edition Xbox 360 1000150449 - Best Buy

How long is Batman: Arkham Trilogy?

Took me over 14 years but I finally beat Arkham asylum. Toughest game I've ever played. : r/BatmanArkham

Batman: Arkham City - Wikipedia

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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

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Batman: Arkham Asylum Walkthrough Defeating the Joker

In what order should you play the Batman Arkham City, Asylum, Origins, and Knight games? - Quora

Beat Down, Arkham Wiki

Batman: Arkham Asylum Walkthrough - Bane Boss Fight (HD)