Heartomics: Lost Count

Hero is a male protagonist with no memory, accompanied on his journey to recover them by three girls named Euphony, Lyra, and Melody, who help him face each obstacle along the way. When a set of memories is recovered, the most vivid ones rise to the surface first. Heartomics: Lost Count is a hybrid visual novel and danmaku bullet-hell game in which the bullet-hell sections correspond to the emotional intensity of the memories being recovered.