Are there anymore slasher films beside halloween scream Friday 13 nightmare on elm street and child's play?

There are a whole bunch of slasher films, some are not so well known. There is also pinhead {think it goes by a different name but pinhead is the main villain} there is also one about a sleep away camp where the killer goes from being a guy to getting a change to a woman {pretty cheesy but funny}. You just have to go to your local movie shop and look around at the older horror movies.