Maniacal
the green Napoleon
Link to video.
Looks like it will be continuing the story of the first game, as well as the wacky setting and brawling Apparently it will have more open levels, drop-in/out co-op multiplayer, be on the PC, 360 and PS3 and have more of a lock on to your target.
I loved the first game, it was refreshingly wacky and imaginative with an excellent melee/brawling combat system that really made you feel the punches.