Scars of FAUNA is an instrumental track composed by Nekomata Master (猫叉Master, real name Naoyuki Sato), a longtime Konami-affiliated composer known for his work across the BEMANI series. The song was created for the first Tenkaichi otogesai (天下一音ゲ祭), a landmark cross-title collaboration event that simultaneously released the same track across four arcade rhythm games, jubeat saucer fulfill, Taiko no Tatsujin Kimidori Ver., Groove Coaster EX, and maimai ORANGE, on November 26, 2014. The composition takes the element of earth (土) as its conceptual core, one of the classical four elements Nekomata Master mapped to each participating game. In his artist comment, he described waking from a dream at 5:30 AM with the image of the earth calling him to battle, and channeled that energy into what he called a "grand and elegant" piece. The result is a rhythmically driving instrumental built on heavy, earth-shaking percussion patterns layered with a sweeping melodic line that weaves through the beat. A long version of Scars of FAUNA appears on Nekomata Master's personal album follow slowly, a distinction shared by no other Tenkaichi otogesai entry across any of the four participating games. A remix by ろひ (Rohi) later appeared in SOUND VOLTEX EXCEED GEAR. In maimai, the song's Master chart, designed by チャン@DP皆伝, carries a 13+ difficulty and packs 777 total notes including 92 Slide notes, creating a dense, physically demanding layout that mirrors the track's unrelenting percussion. The chart has been rebalanced multiple times across maimai versions, with its level constant rising from 12 in ORANGE to 13+ in later editions.