Reverse Kids

Riverse Kids is an unlicensed Super Famicom game developed by EJ Corporation and published by Jap!. This game is a variation of reversi (Othello), which is played against a girl named Mirika. The player can choose to play against either a younger or older version of Mirika, which act as easy and hard modes, respectively. There is a time limit on placing pieces, and running out of time results in an instant loss. Between winning consecutive matches, you're rewarded with animations of your opponent in various stages of undress.