Really cool Two Face Easter Egg in Arkham Knight Robin DLC. In the DLC you can find dice and tarot cards displayed. Arkham staff tried to rehabilitate TF by giving him a
Batman™: Arkham Knight - Robin and Batmobile Skins Pack on Steam
Batgirl: A Matter of Family Walkthrough - Batman Arkham Knight Guide - IGN
Batman Arkham Knight Robin DLC A Flip of a Coin - YouTube
ROBIN DLC - Batman: Arkham Knight - Full Walkthrough & Ending - YouTube
Batman Arkham Knight - Robin A Flip Of A Coin Door Puzzle - YouTube
DLC & Expansions - Batman: Arkham City Guide - IGN