Choro Q - Hyper Customable GB is a Game Boy Color game that puts players in the driver's seat of miniature cars, or "Choro Q." The game is known for its customization options, allowing players to modify their cars' performance and appearance. It features a range of tracks and challenges, emphasizing fast-paced racing action within the limitations of the handheld system.  While not a major international hit, it holds a special place amongst fans of the Choro Q series and Game Boy Color racing games. Specific developer and publisher details might require further research into Japanese game archives.

Choro Q - Hyper Customable GB (Japan)

Chibi Maruko-chan - Go Chounai Minna de Game dayo! (Japan)