Mysterium, released in Japan for the Nintendo Game Boy, is a puzzle game known for its unique gameplay and challenging levels. While details on its original development and specific company are scarce, its release showcases the Game Boy's growing library of diverse titles in the early 1990s. Gameplay likely involves logic and spatial reasoning, common in puzzle games of that era. Its limited release suggests it may be a relatively obscure title.

Mysterium (Japan)

Ms. Pac-Man (USA)