YouTuber Giaco Whatever took the power of Nerf to a whole new level with a homemade Nerf gun that he built. This thing is super powerful and can shoot a foam Nerf dart at a speed that can shoot right through a tin can! His dart blaster generates 400 PSI of pressure which could do some serious damage if it was shot at an actual person. I'm never going to get in a Nerf battle with this guy! I'll stick to the regular cool looking Nerf guns that can't kill a person.