The eyes of all Makai fall upon you - the Demon Goddess herself has challenged you to a final battle.

Song: 神話幻想　～ Infinite Being, final boss theme of 東方怪綺談 ~ Mystic Square
Artist: INO
Source: http://www.nicovideo.jp/watch/sm15165378
Original Song:    • 東方原曲　怪綺談 ６面ボス・神綺のテーマ　神話幻想　～ Infinite ...  
Download Link: Removed by Artist

ZUN: "This is the last boss theme. Of course, I really put a lot of spirit into it.
I was aiming for a song that had the right blend of coolness and cuteness. The main melody is pretty easy to remember, so the song has a nice feel to it.
It's a pretty good song."