Batman: Arkham Knight pre-order
If you pre-order the game, you'll get Harley Quinn as a playable character with her own weapons and abilities. She comes complete with four challenge maps, too.
Plus, if you're planning on getting the game on PS4, you'll get exclusive Scarecrow Nightmare missions.
We've not seen a Collectors' Edition of Batman: Arkham Knight available yet, but we'll update this article if one is announced.
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