Rocksteady is teasing a DLC reveal for Batman: Arkham City by tweeting a dark picture of a pair of boots and the end of a massive hammer. Do the boots look familiar? They should, as they are resemble the ones worn by Harley Quinn in the game, and DLC for her has been rumored for ages now. Well, at least since the start of the month. We’ll mail Warner. Thanks, NeoGAF.