Exclusive: LEGO Batman: Legacy of the Dark Knight Deluxe Edition - Mayhem Collection DLC Trailer Reveals The Joker and Harley Quinn Story Mission and More

During our IGN gamescom Studio livestream, we were able to exclusively reveal the LEGO Batman: Legacy of the Dark Knight Deluxe Edition - Mayhem Collection DLC trailer, which features an exciting look at the new story mission starring Harley Quinn and the Joker, the Mayhem Mode, and the Sinister Pack.