This game is a split-screen vertical danmaku shooting game where two characters engage in the normal Touhou-esque gameplay, while unleashing attacks and character-specific spell cards onto the other player, similar to that of Phantasmagoria of Dim.Dream. When a player gets hit enough times to lose all their hit points, they are defeated.

The game features a Story Mode, which pits the player against a series of nine opponents that get progressively harder, and a versus mode, which is a single match against either an AI opponent or a human opponent(or, two AI opponents). With the netplay patch, multiplayer is also possible through LAN or over the Internet.

Starting off somewhere near the Misty Lake next to the Scarlet Devil Mansion, the heroines set out and soon encounter the other characters. Battling them in succession, they eventually reach those who have the answers, Komachi Onozuka and Eiki Shiki, Yamaxanadu.