Sat, Aug 21, 2010 | 10:52 BST
First Portal 2 co-op trailer shows world’s most extreme teamwork
The first thing we thought of when we heard “two-player Portal” was “turning our partner’s every step into a living, portal-centric nightmare,” but apparently griefing isn’t all Portal 2′s good for. Crazy, right?
But it’s totally true! Take a quick glimpse at how it’ll work after the break, courtesy of Gametrailers.