Subenishiki

Subenishiki is a shooting action game with a Metroidvania-style structure. During a battle between the space pirate King Mongoose and the Martian Security Service, a Martian life form called SUBENISHIKI intervenes.

Story

SUBENISHIKI is an energetic life form that has long been used as a power source for machines. Its high intelligence, vitality and rapid biological evolution also make it dangerous to handle. King Mongoose genetically manipulates SUBENISHIKI and deploys it as a biological weapon, but cannot control it as intended, setting off an unexpected turn of events.

Combat

You use a wide variety of shots, and maintaining your firepower is an important part of the game. It also incorporates many elements from games of the early 1980s.