Help a Fellow Reader out

Hello. Back in the late 70s/early 80s I remember seeing a short film at the boardwalk in Ocean City, NJ that I believe was part of a dark ride attraction (there were a number of these on the boardwalk including one called Ghost Creek Cavern and another that, I think, was called King Tut's Tomb). I don't remember the name, but it was about 15 minutes long and I don't think it had any dialogue. I remember that the movie featured scenes of an out-of-control roller coaster, filmed as if you were sitting in the coaster. It also featured various monsters/evil creatures meancing teenagers. I recall one scene in what was either a torture chamber or mad-scientist type lab where one of the creatures gets its leg chopped off. I realize this information is very vague, but these are memories from over 20 years ago. For some reason this has been on my mind and bugging me, and I'd just like to find out anything about this movie, and I thought maybe you might be able to help. Thanks.