Portal 2 played with Razer's Sixense motion controllers

Sure, you come to Joystiq to see some Portal 2 -- we get it. But we've got something extra to spice things up: Portal 2 being played on the big screen live at CES 2011 with the new Razer Sixense controllers, a pair of motion-sensing sticks for PC, set to launch this year.

This article was originally published on Joystiq.