"殿ッ！？ご乱心！？" (officially romanized as "Go! Run! Sh1ne!") is an original commission for maimai DX CiRCLE, created by the producer and DJ Shu (Shu Horiike) with vocals by the personal VTuber 天羽しろっぷ (Syrup Amau). Clocking in at a relentless 200 BPM, the track is self-described in its official music video description as belonging to the genre "VocaTECH×BAKACORE", a fitting label for a song that careens between frenetic电子 beats and chaotic, tongue-in-cheek vocal delivery. The lyrics read like a rambling argument between a maimai player and their cat-maid caretaker, alternating between mock aggression ("What, you picking a fight?") and self-deprecating humor before dissolving into shouted chants of "ご乱心！" (meaning "going berserk" or "losing one's mind"). The jacket art and music video were handled by illustrator ばやちゃお (Bayachao), who also designed the recurring cat-maid character Carol (きゃろる) that appears throughout the visuals. In maimai DX CiRCLE, the song functions as a Perfect Challenge unlock in the Tricolo Area (トリコロちほー), requiring players to accumulate 700 km of travel distance before they can play it, marking it as a mid-to-late grind goal for the area. Shu's involvement continues a pattern of cross-game commissions for the producer, following his contributions to CHUNITHM and the BEMANI series, while Syrup Amau's energetic vocal performance brings the song's playful, rebellious personality to life. The Master chart, designed by ぴちネコ, delivers a level 14 (14.2) experience with dense Touch and Break note clusters that mirror the track's chaotic spirit.