Watch the Batman Impostors fight

Warner has released a new trailer showcasing the gameplay elements - custom costumes, items - that'll make up Gotham Impostors, the team-based FPS that's heading for a 2012 release.

It's colourful and comedic tones look markedly different than Arkham City, but there's still that slightly sinister edge; note the bear traps and stun guns used to protect your turf from the other side, and the Joker's commentary to urge the Clown side to victory.

Check out the video.