須田剛一
is a horror-themed adventure game developed and published by Human Entertainment for the PlayStation in October 1997. An entry in the company's "Twilight Syndrome" series, the game was directed and co-written by Goichi Suda. Retaining the combination of adventure and visual novel elements from earlier games in the series, "Moonlight Syndrome" follows series protagonist Mika Kishii as she is reluctantly pulled into investigating supernatural phenomena.