Guinea Pig was blech. Fight for Your Life sounds interesting I might have to check it out. If I could reccomend some more films:
Caligula
Hanzo the Razor
Man Bites Dog
Street Trash
Salo
Evil Dead Trap
Emmanuel Series (specifically Emmanuel in America)
The Toxic Avenger
Maniac Cop
Blood Feast
Some of these might not be exploitation per say, but they are all over the top movies.
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