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GameTrailers Shows Off Batman: Arkham City Barcave Challenge Map

Footage from the Batman: Arkham City Batcave challenge map has popped up in the latest video from GameTrailers.  You can take a look at the 4:15 mark the downloadable content will be available on December 20.

[vodpod id=Video.15756841&w=425&h=350&]

Comics Alliance also has a bunch of screen grabs.