What is the name of this similar movie?
I cannot for the life of me remember the title of this movie:
I remember the VHS box was 3D and raised, I believe there was an electric guitar and a rose design or something.
I don't remember much about the plot, but there was a part with a rock concert ending with people turning into silly looking rubber demons dancing to the music.
This movie also came out in the 80's, I saw it a few times when I was a kid but always confused it with Trick or Treat, but I have no idea what the name was.
Any help?