Mahjong Gakuen was yet another one of those erotic games released in the Arcades when that kind of thing was popular.

The game had the player go through nine stages, each featuring a beautiful female ranging from a young girl all the way to a milf.

It was released in the west by Mitchell in 1989, under the name of "Poker Ladies", with the girls being rearranged.
The art from this game would probably not make for good fap material in this age, but for a kid running this in the MAME emulator, it's another story. I like to give it a fap for nostalgia now and then.

Note that in the last pose for each woman, she has a small animation. These are not present.