English:

A nice and funny fishy game from Japan
Go fishing with a submarine. Press Z to shoot the fish (harpoons) and they will be collected in the cage you are dragging. After a while you must return to the surface to get air. Try to touch the sailing boat to empty your cage and recharge harpoons and torpedos.
controls:
Z = start game
arrows = move
Z = shoot a harpoon
X = launch a torpedo