Round Round Spinning Around is an original instrumental track by Nhato contributed to the maimai でらっくす UNiVERSE edition. Clocking in at 175 BPM with a driving electronic sound, the song was introduced on December 10, 2021 as part of the Metropolis Area 4 (メトロポリスちほー4) unlock system, where players needed to accumulate 72 km of in-game distance to access it. From the FESTiVAL version onward, it became unlocked by default across all regions. Nhato (real name Tatsuya Fukumuro) is a well-established figure in the Japanese electronic music scene, a sound director at Otographic Music and a member of wavforme. He also performs as one half of the unit Edelritter alongside TAI, known for other maimai contributions such as Nerverakes and Sprintrances. The song's music video was produced by Taiyo Yamamoto and Sam Yolji. The song is tied to a flavor-text narrative set in the maimai original story universe, depicting the android SAM_RAI arriving at a grand hall lit by lanterns and massive monitors, where Kurohime (黒姫) and the five elite units known as the Five Regency Families (五摂家) await. This positions Round Round Spinning Around as a climactic encounter piece within the game's lore. On the charting side, the MASTER difficulty, designed by すきやき奉行, was originally rated level 13+ before being adjusted down to level 13 in FESTiVAL, settling at a difficulty constant of 13.3. The EXPERT chart was designed by 翠楼屋. With 821 total notes on MASTER including 101 Slide and 46 Touch notes, the chart is notably Slide-heavy for its difficulty tier.