It's gotta be Futura Spa. So much to like here. Mary and Phil (read their belt buckles) are jogging from the pleasure dome, a Jetson's like Space Spa. You have a dude with vein-bursting guns curling a beam of pure light. An exercise machine so effective, the maximum number of reps is 2 (I guess 3 and your biceps explode). You've got a porn-stashed dude bathing in a hot tub filled with bubbling water from a naked spa lady. All with a disco light show/prismatic effect never seen before or since through the backglass.