Hachi-One Diver DS (Japan) (ハチワンダイバーDS) is a Nintendo DS game that follows the story of a young diver, Hachi, as he explores the depths of the ocean. Players take control of Hachi as he dives deep into the ocean, discovering new creatures and uncovering hidden treasures. Along the way, Hachi must battle against monsters and other divers, while also searching for the legendary sunken ship, the Hachi-One. The game features an innovative underwater camera system that allows players to capture photos of the many creatures they encounter, as well as collectibles that can be used to upgrade Hachi's diving equipment. The game also features two-player co-op play, allowing friends to join Hachi on his adventures. With its unique underwater exploration and exciting combat, Hachi-One Diver DS (Japan) is sure to provide hours of fun for players of all ages.