The 12 best Easter eggs in 'Batman: Arkham Knight'

WB GamesHints of Superman are all over Gotham.

"Batman: Arkham Knight," like every game in the "Arkham" series, is packed to the gills with Easter eggs and sly references to other characters and events in Batman's world. They're probably one of the best aspects of the series.

However, where "Arkham Knight" differs from the rest is in the substance of all these nods and references. While previous games focused pretty squarely on the wider Batman mythos, "Knight" doubles down on the world outside of Batman, making lots of references to other DC Superheroes and a few other supervillains.

Of course, this isn't a comprehensive list - development studio Rocksteady Games once famously hid a secret so well in "Arkham Asylum" that they had to rat themselves out years later - but it gives a good feel about how other heroes might fit into the world of the "Arkham" games.

Some light spoilers ahead.