What are LEGO blocks good for if not to create awesome replicas of elements from our favorite games? Take this pretty snazzy LEGO Portal gun, for instance. I hear it really fires, although whether or not it will help you escape Aperture Laboratories is another thing entirely. If you want to see the gun for yourself, you'll have to travel to the LEGO store in Minneapolis. Or you could just hit the jump and watch the video. Your choice really.