Samurai Kid is a Game Boy Color action platformer that likely features a young samurai as the main protagonist, traversing levels and battling enemies. The game would probably use side-scrolling mechanics, common in the genre.  The level of detail in the gameplay varies, as most information is limited to its platform and region of release. Further details are hard to find without dedicated game reviews or walkthroughs.

Samurai Kid (Japan)

Sakata Gorou Kudan no Renju Kyoushitsu (Japan)