Virtually unnoticed during its brief theatrical run, this wildly entertaining horror-comedy achieved healthy cult status following its home-video and cable TV releases. The directorial debut of Fred Dekker (writer of the successful horror parody House), this low-budget effort throws alien monsters, axe-wielding killers, flesh-eating zombies, nudity, and (gasp!) drunken fraternity shenanigans into a blender, spiced with witty one-liners and references to dozens of horror classics (and anti-classics). The result is a satisfying treat that will tickle the tastebuds of horror fans. The film's nominal protagonists are a pair of randy fraternity pledges (Jason Lively, Steve Marshall) who open a literal can of worms when they steal a corpse from the campus medical facility and release a horde of space-leeches, which proceed to infest the bodies of everyone in sight. The host bodies subsequently become homicidal zombies with a penchant for popping in on unsuspecting (and undressing) sorority girls. The town's only hope (such as it is) seems to be a hard-boiled ex-cop (Tom Atkins), who has uncovered the secret link between the zombie invasion and a 30-year-old axe-murder case... and who's also several sandwiches shy of a picnic. Dekker keeps things moving at a brisk pace thanks to some outrageous set-pieces (some of which happen so quickly they'll have viewers reaching for the pause button) and clever dialogue, particularly for Atkins ("Girls, the good news is your dates are here; the bad news is, they're dead"), who dives into his crusty character with relish.
~ Cavett Binion, All Movie Guide