幻想のサテライト (Gensou no Satellite) is a high-energy Touhou Project vocal arrangement by the doujin music circle 豚乙女 (Butaotome), built from ZUN's instrumental piece 天空のグリニッジ (Greenwich in the Sky), originally from his 2006 solo album 大空魔術 ～ Magical Astronomy. The arrangement first appeared on Butaotome's 2010 album 幻想ホモ・ルーデンス (a title playing on the Homo Ludens concept), and was later brought into maimai as part of the GreeN PLUS update on July 17, 2014. Clocking at a relentless 230 BPM, the track features ranko's distinctively crisp vocals over a folk-accented rock arrangement by comp, with lyrics by ranko no ane that weave imagery of the moon, stars, and illusory celestial bodies, themes reflected in the song's title, "Satellite of Illusion." In maimai, 幻想のサテライト has accumulated a layered chart history spanning both Standard and DX formats. The Standard Master chart (Level 14, constant 14.1), designed by はっぴー (Happy), started at Level 12 and rose through multiple version updates, an indicator of how the community's perception of its difficulty has climbed over time. The DX Master chart, designed by 某S氏 (a certain Mr. S), stands out for its unusually high Touch-note count of 188, making it one of the more distinctive Touhou DX charts in the game. The song also received a special UTAGE (宴) chart in MURASAKi, cryptically credited as 蔵入り、はい、それでサヨナラ. Beyond maimai, the song appears in CHUNITHM and オンゲキ, cementing its place as a recurring Touhou standard across SEGA's arcade rhythm game lineup.