I get the wannabe hip 80's script, the hair, the costumes, the bad acting seemingly on purpose in order to be humorous. I get the over-use of organ music to emphasize the connection of horror movies as a tool to relive the horror of the past. I don't get the over-dubbed music scene which does not match what was played, maybe it was a popular song or they didn't have the rights to whatever it was? It all vaguely makes sense, and some of the special effects were impressively real, surprisingly so. There were plenty of bathing suit and breast shots for those who need them.
What I do not get is the loud caged bird sounds at the end. Sure, they were outside, but that was a bit much!