Play Navy Blue 90 Online

Navy Blue 90 was a Game Boy release from 1990, developed by the Japanese studio Irem. It arrived during a period when the handheld was establishing its library beyond Nintendo's own titles, offering a distinct take on the platform adventure genre.

You control a lone diver navigating a vast underwater labyrinth. Your goal is to explore the submerged ruins, room by room, to uncover their secrets and ultimately find a way to the surface. The core mechanics involve managing your limited air supply, which constantly depletes, and using a small submersible to navigate tight passages and defend against aquatic creatures. The pacing is deliberate, focused on careful exploration and resource management rather than speed, and the maze-like structure can be challenging to memorize. It feels like a quiet, solitary struggle against the depths, where every new screen brings a mix of discovery and tension.