Command Master is a Game Boy Color strategy game that likely involves commanding units on a map, typical of the real-time strategy genre. Exact details of the gameplay, plot, and units require additional research into the game's specifics.  As it was released in Japan, finding detailed information in English may require searching Japanese gaming databases and reviews.  The developer and publisher are also details needing further investigation.

Command Master (Japan)

Classic Bubble Bobble (USA)