How long is Batman: Arkham Asylum?

How to Play the Batman Arkham Games in Chronological Order - IGN

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

Batman: Arkham City - IGN

Batman: Arkham Asylum Retrospective - gameblur

Batman: Arkham Asylum Walkthrough Defeating the Joker

Getting the hang of it and a ROIDED BANE?? First Time Playing Batman: Arkham Asylum Part 2 4K

Basics - Batman: Arkham Asylum Guide - IGN

Arkham Asylum: I absolutely adore the fact that your suit gets more dirty and torn as the game progresses! It adds to the immersion! : r/BatmanArkham

Batman: Arkham City - Armored Edition (Wii U) review: Batman: Arkham City - Armored Edition (Wii U) - CNET

Face-Off: Batman: Return to Arkham