Missing here are the other memorable parts: Barbara Crampton's boobs, which actually only present their joy globeness twice, but hey when you're 18 years old when the movie came out, boobs.
It's schlocky and cheesy and more Evil Dead II than SCARY scary, but it's some fun in the good parts (makeup effects, boobs; they spend the money properly) which almost makes up for the long patches of dull bad acting.
Fun Fact: Creepy Jeffrey Combs would go on to play nine(!) different characters on various Star Trek series (most notably the Andorian Commander Shran on Enterprise).
Score: 5/10. Catch it on cable.