In this video tutorial will show you how to get Batman Arkham City Joker's Carnival Challenge Map DLC for free on xbox 360 game ans PS3 game. This is rare exclusive downloadable Joker's Carnival Challenge Map DLC to get it for free on your hand. Visit following blog and get more information about this;

http://jokercarnivalchallengemapdlcfree.blogspot.com/
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When you got your Joker's Carnival Challenge Map DLC code, visit your game Marketplace (For Xbox Use Visit Xbox Live - For PS3 Users Visit PSN) and redeem the code. After that you will able to download Joker's Carnival Challenge Map DLC for free on Batman Arkham City Game.. Any more questions, you can send us a comment about it via our web site. Thank you and enjoy the game.