Tokyo Disneyland - Mickey no Cinderella-jou Mystery Tour is a Game Boy game released in Japan, featuring Mickey Mouse in a mystery at Cinderella Castle. It's likely an adventure or puzzle game involving exploration and solving mysteries within the context of the Tokyo Disneyland setting.  Additional details about gameplay mechanics and the development studio are needed to make a complete introduction. 

Tokyo Disneyland - Mickey no Cinderella-jou Mystery Tour (Japan)

Tokio Senki - Eiyuu Retsuden (Japan)