10 Surreal Gaming Easter Eggs You Won’t Believe Exist

The Arkham games have long managed to hide huge secrets from the fanbase for long amounts of time - with them having to outright tell us that there was a secret in the first game that still hadn't been found four months later.

And it can only be said that the ante was well and truly upped for Arkham City, as this easter egg wasn't found for a whopping three years. If you were curious enough - or bored enough - to change your console date to the day and year developer studio Rocksteady was founded, you'd find the Calendar Man waiting in his cell with an unusual warning for you.

While we wouldn't have known at the time, this warning actually foretold the events of Arkham Knight, where Calendar Man can be seen waiting in the crowd when Wayne manor has a bit of an explosion.

It's certainly a cool little extra, but you can't help but worry that maybe Calendar Man has had some secret premonition powers the whole time.