GB Memory Multi Menu is a utility title for the Game Boy Color, specifically released in Japan.  It's a menu-based application (NP likely denotes 'non-playable') rather than a traditional game.  Its primary function is likely to provide a means to access and manage saved data or different game settings.   The game itself would not have typical gameplay in the conventional sense but rather acts as a system tool.  Details about its publisher or specific development team are largely unavailable.

GB Memory Multi Menu (Japan) (NP)

Ganbare Goemon - Tengutou no Gyakushuu (Japan)