Laserblast (1978)
A teenager stumbles upon an alien weapon, which transforms him into a grotesque killer.
About Laserblast
Alien creatures kill a mutated alien creature in the California desert. Its remains, and the high-tech laser gun and power source accidentally left behind, are found by an ostracized teenager. However, the power source causes the teenager to mutate too, and he goes on a murderous rampage.
