Touhou 20 - Hallucination Atop a Bivalve (Touhou 25.5 Style Remix)

Composed by ZUN Remix by NeuTrum This remix is in the style of one of my favorite soundtracks called "今日も元気！ Kyou mo Genki!" from "On Fight! 小鳥ヶ丘高校女子ぐろ～部 オリジナルサウンドトラック". So it definitely has the pace of a fighting game.