Batman: Arkham City - Harley Quinn's Revenge DLC Steam CD Key - discussion

As the dust settles in Gotham, Batman is lured back into Arkham City by its last remaining super-criminal; Harley Quinn. Now more dangerous than ever and leading a homicidal gang of her own, she is hell-bent on taking her revenge against the Dark Knight. Batman: Arkham City 'Harley Quinn's Revenge' DLC sends players back into the urban mega-prison to face down it's final challenge. Playing as both Batman and Robin, gamers will utilize each of the heroes' unique combat and detective skills to
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