The game is split into 20 sub-parts each given a title in English written mostly in white where a portion of the title is displayed in red, and each covers a single day. There are seven endings to the game: a single true end, two normal ends, and four bad ends. In the original game, a bonus role-playing game became available on the title screen after the game was completed at least once. This was later removed from the full-voice DVD edition of the game. There are scenes in "Moon" with sexual CGs depicting a given heroine having sex.