The Yakyuuken Special: Kon'ya wa 12-kaisen!! (Japan)

The Yakyuuken Special: Kon'ya wa 12-kaisen!! (ザ・野球拳・スペシャル　～今夜は１２回戦！！～) was an adults-only game developed and published by Societa Daikanyama for the Sega Saturn on July 28, 1995.

*Yakyuuken is a strip version of rock scissors paper.  Which is really all this game is.  Play janken and watch videos of girls undress as they lose.

This ad explains that the games in it will be end production on March 31, 1998 due to some sort of movement to improve the game industry by ending the production of x-rated games.  Mind you, these games had already been on the market for quite some time at this point, so ceasing production would seem a natural thing to do regardless.  And then they go on to announce their continued commitment to producing games for people over 18...