Story.During the battle between the space pirate "King Mongoose" and the Martian Security Service, the Martian life form "SUBENISHIKI" intervenes.SUBENISHIKI" has a lot of energy and has been used for a long time as a power source for machines.However, it is a very dangerous life form to handle because of its high intelligence, vitality, and rapid biological evolution.King Mongoose" genetically manipulates SUBENISHIKI and deploys it as a biological weapon in battle, but he is unable to control it as he wishes, leading to a surprising turn of events.Game DescriptionThis is a shooting action game finished in the style of Metroidvania.As a shooter, there are a wide variety of shots, and maintaining firepower is an important element of the game.It incorporates many elements of games from the early 80's.Please enjoy the world of "SUBENISHIKI" including nostalgia.