it was a 80s sci-fi horror don't remember much of it but i do remember a group of people set in more future times has to find shelter to avoid acid rain. When they find a shelter there seems that thier is a creature that hunts them down and kills them in the place i think it was abbandoned science lab not sure though.
That would be David DeCoteau's Creepozoids (1987)
http://www.imdb.com/title/tt0092795/
Guilty pleasure of mine :smile:
I'm pretty sure thats it ty