Deadly Weapon is a 1989 American science fiction film directed by Michael Miner and starring Rodney Eastman.
A teenager named Zeke, who fantasizes that he is from outer space, is bullied by some other teens at school and deals with a drunken father, runaway mother and a sister who delights in being nasty to him.
Although planned as a sequel to Laserblast, while writing the script - and partially due to financial constraints-, Band and Miner decided to make an original film, based on the central idea.
[1] According to Miner, he consulted with a physicist to get their opinion on whether the ray gun in the film looked plausible.
The review praised the subtle handling of the theme of teen suicide as well its addressing the problems of growing up in a dysfunctional family.