Gamespot: The Behemoth, the creator of Alien Hominid and Castle Crashers, had a few gigantic arcade-style units on hand in its booth to show off its upcoming Xbox Live Arcade game, BattleBlock Theater--a 2D platformer and a cooperative puzzle game blended together to create an experience that challenges your brain and tests your restraint. Upon starting our two-player demo, we were thrown into an area that gave us a chance to become familiar with the controls, which are pretty straightforward. Both characters had a jump, a melee punch move, and a throw that could be used to propel a teammate across an environmental hazard (or throw him into it). But more importantly, these characters both had a special ability--one had a fan that could blow a teammate around, while the other could fire darts that stick to walls, creating a temporary platform to jump onto and advance across within the level. At various points in a level, you will also find special items, such as rocket packs, that will help you progress to or reach previously inaccessible areas.