A new villain for Batman: Arkham City has been revealed.HERE BE SPOILERS. Really. HERE BE SPOILERS.
Confirmation comes from a new video, from Sony Computer Entertainment US show Qore, that shows the Mad Hatter in Arkham City.
A screenshot, courtesy of NeoGAF, shows the Hatter flanked by what may be goons loyal to the supervillain - wearing rabbit masks.
Fans are speculating that Mad Hatter's inclusion in the game may indicate it features a sequence similar to the Scarecrow sequence from the first Rocksteady-developed Batman game.
In the video, which is now on YouTube, supervillain Poison Ivy is also seen.
Mad Hatter turns up on the 3 minutes 38 seconds mark.
Arkham City features a raft of Batman supervillains, including Joker, Riddler, Harley Quinn, Bane, Hugo Strange, Two-Face and Penguin.
Then there's Mr Freeze, Talia al Ghul and Calendar Man.