A collaborative effort between two doujin creators, Tasofro (Tasogare Frontier) and ZUN, this game puts the characters from ZUN's Touhou danmaku shmup in a fighting game. As such, to carry the shmup feeling, most of the game's characters make heavy use of projectile attacks but can also graze enemy projectiles by dashing. Also taken from the shmup games are spellcards. Every round, each character can activate their spell card once which restores a large portion of their life (indicated in red on the life bars) as well as lets them use the spellcard specials. In Story Mode, the computer players will also make use of infinite repeating spellcards that aren't available to the players, often using projectile patterns that look similar to what you might find in the shmup games. The game also introduces a new character to the series, Suika Ibuki.

The game later included the character Hong Meiling against ZUN's wishes, and other fans added multiplayer functionality to the game as well.