Datsui de Pon
Publisher: Cross Road
A yakyuken game with your choice between a busty schoolgirl and a small-breasted girl in buruma. Options are all in text, but all you need to know is that the first is Rock, the second is Scissors, and the third is Paper. The girls strip as they lose, but you apparently also do, and you get fewer tries to win than the girls do; if you do win, however, you have sex with the girl. Sadly, this circle is now defunct and their products no longer appear on DLsite, which is where we bought this game years ago.