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Overview

回る空うさぎ (Mawaru Sora Usagi, "Spinning Sky Rabbit") is a VOCALOID song by Japanese producer Orangestar, featuring the voice of Hatsune Miku. Originally released on Orangestar's second album SEASIDE SOLILOQUIES in 2017, the track is a gentle, piano-driven ballad built around a meditative melody and wistful lyrics about moonlight, stars, and longing. The piano performance was handled by Calkyon, lending the piece a warm, organic acoustic texture beneath Miku's synthesized vocals. The song arrived in the maimai series as a playable track in maimai DX FESTiVAL on February 17, 2023, categorized under niconico & VOCALOID. Its MASTER chart, designed by はっぴー (Happy), sits at level 12 with a difficulty constant of 12.0, offering a straightforward but satisfying challenge at the gentler end of the Master 12 tier. The song later received an UTAGE (宴) gimmick chart in maimai DX BUDDiES, credited to the designer pseudonym "くるくる回る、お星さま。", a chart notable for consisting almost entirely of Slide and Touch notes rotating in circular patterns around the screen, with a single EX Break note as its only non-slide-and-touch input. The UTAGE chart's design directly mirrors the song's lyrical imagery of spinning moons and stars, making it one of the more thematically cohesive gimmick charts in the series.

Videos

Official PV

Open

Master chart

Open

Expert chart

Open

Charts

DX

BASIC
2(2)
129 notesDesigner: -|Tap 103Hold 9Slide 2Touch 13Break 2
ADVANCED
6(6)
256 notesDesigner: -|Tap 205Hold 14Slide 16Touch 14Break 7
EXPERT
8(8.2)
298 notesDesigner: はっぴー|Tap 217Hold 35Slide 25Touch 11Break 10
MASTER
12(12)
526 notesDesigner: はっぴー|Tap 415Hold 27Slide 47Touch 9Break 28

Trivia

  • 回る空うさぎ was originally released on Orangestar's second album SEASIDE SOLILOQUIES in 2017, from which the in-game jacket art is also sourced.
  • The song features piano performed by Calkyon, adding an acoustic dimension to the VOCALOID arrangement.
  • This is the only music game appearance of 回る空うさぎ as of its release, it has not appeared in any other rhythm game.
  • The UTAGE chart (classified as 回/11?) was added in maimai DX BUDDiES on February 29, 2024. Its designer credit reads 'くるくる回る、お星さま。', a playful pseudonym referencing the song's spinning-and-stars motifs.
  • The UTAGE chart contains 254 notes: 221 Touch notes and 32 Slide notes, with exactly one Break note, the very first note of the chart, which is an EX Star Break. Because no other Break notes exist, achieving All Perfect on this chart simultaneously reaches the theoretical-value AP (though the deluxe score theoretical value can still be affected by late PERFECTs on Touch notes).
  • In the UTAGE chart, Slide notes form a continuous clockwise rotation pattern starting from button 1. After the first rotation, the starting Tap note disappears and the Slide begins without a preceding Tap, a gimmick also seen in other '撫' (stroke) attribute charts such as the からくりピエロ UTAGE chart.
  • Touch notes in the UTAGE chart rotate clockwise during the first half of the song and counter-clockwise during the second half. In the latter portion, Touch notes are placed near the outer edge of the screen, requiring careful handling to avoid interfering with the Slide trails.
  • The in-game title (称号) 'まけるな明日に' ('Don't lose to tomorrow') is unlocked by achieving 1 MISS or fewer on the song.
  • The official music video for 回る空うさぎ, while available on YouTube, is not included in the maimai arcade cabinet.
  • In the Asian version of maimai DX FESTiVAL, the song was added on June 23, 2023. In the Chinese version (舞萌DX 2023), it arrived on April 11, 2024.

FAQ

Who composed 回る空うさぎ?
回る空うさぎ was composed, arranged, and lyricized by Orangestar, a Japanese VOCALOID producer known for his melodic, piano-driven style. The vocals are performed by Hatsune Miku, with piano by Calkyon.
When was 回る空うさぎ added to maimai?
The song was added to maimai DX FESTiVAL on February 17, 2023 in Japan. It arrived later in the Asian version (June 23, 2023) and the Chinese version (April 11, 2024 for 舞萌DX 2023).
What difficulty is the MASTER chart for 回る空うさぎ?
The MASTER chart is level 12 with a difficulty constant of 12.0, placing it at the lower end of the Master 12 tier. It was designed by はっぴー and contains 526 notes (415 Tap, 27 Hold, 47 Slide, 9 Touch, 28 Break).
Who designed the charts for 回る空うさぎ in maimai?
The EXPERT and MASTER charts were both designed by はっぴー (Happy). The UTAGE (宴) chart was designed under the pseudonym 'くるくる回る、お星さま。', a thematic name referencing the song's circular motion and star motifs.
What makes the UTAGE chart for 回る空うさぎ unique?
The UTAGE chart (classified as 回/11?) is a gimmick chart consisting almost entirely of Slide and Touch notes, 254 notes total with only a single Break note (an EX Star Break at the very start). Slides rotate clockwise continuously, while Touch notes cycle in clockwise then counter-clockwise patterns. Since the sole Break note is an EX, achieving All Perfect also reaches theoretical-value AP.
What album is 回る空うさぎ from?
The song originally appeared on Orangestar's second album SEASIDE SOLILOQUIES, released in 2017. The jacket art used in maimai is taken from this album.
What does the title 回る空うさぎ mean?
The title translates to 'Spinning Sky Rabbit' or 'Rotating Sky Rabbit,' evoking the song's lyrical imagery of the moon (associated with the rabbit-in-the-moon folklore), stars, and circular motion, themes that are also physically reflected in the UTAGE chart's rotating note patterns.