上海アリス幻樂団
is the eighth official game of the "Touhou Project" scrolling shooter series by Team Shanghai Alice, and the third main "Touhou" game to be released specifically for the Windows operating system. It was first released at the 66th Comiket on August 15, 2004. The game introduces the 'partner' system, allowing the player to switch between two characters, each with their own shot type, in real time.