While we went on our own Easter Egg hunt when Batman: Arkham Knight first came out, DC All Access, the official insider show for DC Entertainment has created a video showing their own favorites.
Videos by ComicBook.com
Games like this typically have so much hidden in them that it takes months, if not years to find every reference, and All Access definitely found a few that we had missed. Check out the video (and beware of some light spoilers), then jump back in and suit up once more to find them again yourself.