Maui Mallard in Cold Shadow, released in the USA for the Game Boy, is an action-adventure game that likely involved platforming and puzzle-solving. More specifics about its development history and creator remain to be uncovered. Gameplay details would likely involve exploring levels, overcoming obstacles, and solving puzzles, though precise mechanics would need more research.  It's probable that a US-based developer or publisher handled its creation and distribution in the American market.

Maui Mallard (USA)

Masakari Densetsu - Kintarou RPG Hen (Japan)