This seems to be the uncensored version (notice the finger graphics). I think there is a censored version that just has spanking and no fingering? It's hard to get reliable information about it since 99% of the websites about it just regurgitate what another site has and the authors have never actually seen it, much less 2 different versions of it.
I can't really tell how the controls work but the marker on what appears to be a strength scale(?) is in random positions depending on who you are erm, fingering, and I think you are supposed to try and use the force it requests. Like putting in a golf game, push it harder and the ball moves farther. So maybe it can be hooked up in mame where the quicker or longer you move up the mouse or spinner determined the fingering strength/length. But that's all just guesswork.
Hopefully one day we can get scans of the cards that were dispensed so that part could be simulated and maybe a photo of the feces trophy but they will probably never turn up. I'm not too concerned with finding a censored spank-only version if it's going to be as expensive as this one was but we'll see.