PLEASE HELP ME!! OK this movie is a bit old I think 80s or 90s it is about two guys I fighting monsters or some mutants... there is some parts that I remember- some headless chicken come to life and start flying - they fight some monstery that look like some biker and most importend part is in the end of movie I don't know how they are "dead" and ambulace drive them in body bags and they open them and they are mutants too... movie ends like that.PLEASE HELP ME :/ searching for this movie for like 10 years