Help me out /tv/, I'm trying to remember a horror/comedy(?) movie from around the 70s-80's (probably). The only part that I remember is where a few of the characters somehow transform into horrible mutations, and the one I remember was one girl and a guy turning into a two headed person, and suddenly after seeing one of their friends turn into an ugly beast the start vomiting.
Ring any bells?
Just checked, it isn't. The movie was kinda self aware to a degree, with hintsof comedy maybe. I recall it was some sort of circus freakshow they where at when the transformations happened