Katou Hifumi Kudan - Shougi Kyoushitsu is a Game Boy Color game released in Japan. The title suggests an educational focus, likely teaching players how to play the Japanese game of Shougi (similar to chess).  Gameplay most probably involves learning rules, playing against the computer at different skill levels, or completing tutorial lessons.  The inclusion of "Katou Hifumi Kudan" could refer to a famous Shougi player whose methods or strategies are incorporated into the game.  More thorough details regarding the developers and publishers are difficult to locate without specialized Japanese resources.

Katou Hifumi Kudan - Shougi Kyoushitsu (Japan)

Karan Koron Gakuen - Hanafuda Mahjong (Japan)