No really, it will burn you
YouTuber AnselmoFanZero built himself his very own replica Dead Space Plasma Cutter. Oh yeah, the gun can actually burn stuff, as demonstrated in his video. As for the gun itself, it weighs about 4.4 pounds, took about 200 hours to build, and features 1,500-milliwatt burning blue lasers.
Space zombies beware – hobbyist builds a real-life Plasma Cutter [Gizmag, via Gizmodo]