The Blob (1988) is about a mysterious goo ball that crashes to earth and figures out that it likes the taste of the locals.
Shivers (1975) follows a doctor who creates a parasite through unethical experiments that helps humans return to their animal-like instincts.
Night of the Comet (1984) follows Regina and her young sister, Sam who fight for survival in a post-apocalyptic world and find survivors.
Death Warmed Up (1984) follows Michael who seeks revenge on a doctor who had surgically injected a serum causing him to kill his parents.
Brainscan (1994) follows a teenage Michael Brower who plays a new computer game only to realize that everything in the game is real!