Your Fruit Ninja high score is irrelevant. In fact, no game of Fruit Ninja that you've played in your life so far matters anymore, not now that a motion tracking system, 5.1 surround sound, and a Wiimote have given the popular mobile game this insane virtual reality iteration. The only thing the CAVE—the Cave Automatic Virtual Environment, used by German students Thiemo, Alex, Matze and Moritz to run the game in—is missing? Real swords. Soon enough! [That Gadget Site via CrunchGear]