I've had, for years, copies of two JAVs that I had named "The Funniest JAV Ever" and "The Second Funniest JAV Ever". RCT-488 and RCT-528, respectively. According to my persona organization notes I paid for a copy of RCT-488, probably to get a better rip or something.
Anyway, it's a like... a sex freak version of a
Don't Laugh challenge show. It's a "hidden camera" show where an actress is told to go into a public place (in RCT-488 it's a college library and RCT-528 it's a cafe/restaurant) and their task is to test the bounds of polite society and embarrass themselves and everyone by doing the most outrageous things imaginable.
That includes prancing/dancing around, making funny voices or noises, making up vulgar songs, getting into people's faces who are trying to enjoy a book or a meal, eating spaghetti like a dog, shooting ping-pong balls out of their pussy, moaning and twisting their nipples, drawing on themselves, handstands, stripping, wearing underwear on their head. All while the background actors refuse to be confrontational and pretend that the actress isn't there literally singing about being a perverted fish and shoving her asshole into the person's face.
It's one of the craziest things I've encountered in JAVs. It's just so out-there and worth your time seeking out for something totally bizarre.
RCT-488 Embarrassing Transformation Challenge The World
RCT-528 World's Most Perverted And Embarrassing Challenge 2 ~Coffee Shop Edition With High-Tension Super-Class Perverted Women Who Don't Pull Out Naked Dirty Talk And Shameful Arts~
If there's a 3rd I'd love to see it. ROCKET is maybe my favorite studio ever.