Mogu Mogu Gombo is likely a Japanese Game Boy title with limited information readily available. The title itself suggests a playful, possibly whimsical theme.  Given the era and the platform, it was most likely a puzzle, action, or a simple arcade-style game. Further research would be needed to ascertain specific gameplay elements and the developer/publisher details.

Mogura de Pon! (Japan)

Miracle Adventure of Esparks - Ushinawareta Seiseki Perivron (Japan)