Arkham West Riddles - Batman: Arkham Asylum Guide - IGN

Just above the locked door to Arkham North in the passageway between the two areas, pull down the weakened wall up high with your Ultra Batclaw and grapple up

Arkham West Riddles - Batman: Arkham Asylum Guide - IGN

Arkham East Riddles - Batman: Arkham Asylum Guide - IGN

Arkham West Riddles - Batman: Arkham Asylum Guide - IGN

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Arkham West Riddles - Batman: Arkham Asylum Guide - IGN

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Arkham West Riddles - Batman: Arkham Asylum Guide - IGN

Arkham Mansion Riddles - Batman: Arkham Asylum Guide - IGN

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Arkham Mansion Riddles - Batman: Arkham Asylum Guide - IGN

Arkham North Riddles - Batman: Arkham Asylum Guide - IGN