An action game with arcade-style submarine combat and exploration. Collect and choose from a selection of weaponry before setting out to destroy the enemy. This is the spiritual sequel to Irem's submarine shooter classic, In the Hunt (Kaitei Daisensou).

An action game with arcade-style submarine combat and exploration. Collect and choose from a selection of weaponry before setting out to destroy the enemy. This is the spiritual sequel to Irem's submarine shooter classic, In the Hunt (Kaitei Daisensou).