The First 15 Minutes of Galatea (Vita)

Copied from PSM Grave:Where have the "ningen" disappeared to?A submarine carrying a girl cuts through the darkness and illuminates an ancient mystery.The deep-sea exploration shooting adventure begins the submarine.-Free exploration of the deep sea, illuminated by lightsShooting battles with deep-sea creatures-Customize your submarine by collecting a variety of weapons.-Survival with locally procured oxygen and weapons-Seamlessly navigate the vast depths of the ocean

http://www.nicovideo.jp/watch/sm42928655