Batman: Arkham Knight - 15 Hidden Easter Eggs, References & Secrets You Need To Find

5. Deadshot, Killer Croc, Black Mask - The Evidence Room

Well, they played this feature close to their chests, didn't they? Whilst intrepid fans can genuinely guess the Arkham Knight's identity from the very first line of dialogue he says, the GCPD evidence room is a far more tantalising combination of villain-potential. Bursting with weapons and iconography, you can wander the isles of the precinct for as long as you like, noting the likes of Deadshot's equipment, both Ra's and Talia al Ghul's swords, and even Black Mask's - well, have a guess.