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Overview

Laur, a trackmaker and DJ affiliated with the HARDCORE TANO*C label, brought "Mutation" to maimai DX Splash as part of the Metropolis Area 3 (メトロポリスちほー3) content update. Known for blending classical instrumentation and metal influences into hardcore electronic music, Laur delivers a speedcore track whose kick drum patterns push the perceived tempo far beyond its listed 155 BPM, effectively running at around 310 BPM. The title, meaning "sudden mutation" in English, echoes a creative theme the artist previously explored with "Metamorphose" for WACCA, both tracks revolving around dramatic shifts in musical intensity. Within maimai's Metropolis Area storyline, "Mutation" accompanies a scene where a hacked monitor system displays countless white girl-type robots identifying themselves as "イーシュ" (Eesh). A voice echoes through the metropolis demanding that "黒姫" (Kurohime) be surrendered or destroyed. As the interference is blocked and Eesh's face fades from the monitors, a final transmission reaches Kurohime alone, mentioning the "ニライカナイ計画" (Nirai Kanai Project), causing fragmented, unaccounted-for images to flood her memory. This narrative layer ties the song to the broader lore of the Metropolis Area arc in maimai DX Splash. The MASTER chart, designed by 小鳥遊さん (Takanashi-san), earned a Level 14 difficulty rating. Its patterns include rapid 24th-note trills preceding a countdown section, recurring 8th-note hold sequences reminiscent of "Mare Maris," 16th-note tap streams interwoven with lightning-shaped single slides, and overlapping slide formations in the closing drop. The EXPERT chart, designed by サファ太 (Safata), sits at Level 12 with a balanced 647-note spread across all five note types. Beyond maimai, "Mutation" later crossed over into CHUNITHM LUMINOUS, where it debuted as a National Matching unlock tied to the KING OF Performai The 5th tournament finals.

Videos

Official PV

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Master chart

Open

Expert chart

Open

Charts

DX

BASIC
5(5)
221 notesDesigner: -|Tap 198Hold 5Slide 3Touch 6Break 9
ADVANCED
8(8)
375 notesDesigner: -|Tap 289Hold 29Slide 9Touch 35Break 13
EXPERT
12(12.5)
647 notesDesigner: サファ太|Tap 488Hold 57Slide 32Touch 43Break 27
MASTER
14(14)
991 notesDesigner: 小鳥遊さん|Tap 713Hold 130Slide 47Touch 81Break 20

Trivia

  • Laur joined HARDCORE TANO*C in September 2018 and is known for fusing classical and metal elements into hardcore electronic productions.
  • The song title translates to 'sudden mutation' in English. Laur's earlier track 'Metamorphose' for WACCA shares a similar theme of musical transformation.
  • Although the song is listed at 155 BPM, the kick drum's speed effectively doubles the perceived tempo to roughly 310 BPM, a characteristic trait of speedcore.
  • The jacket movie was produced by 群青リコリス (Gunjou licorice), credited as the video creator.
  • Mutation was originally unlocked through a Perfect Challenge in Metropolis Area 3, requiring 756 km of travel distance. It became generally available on September 16, 2021, at the launch of maimai DX UNiVERSE.
  • In the Chinese version (舞萌DX 2021), Mutation was unlockable from December 10, 2021, by reaching 15,000 m in the area, bypassing the Perfect Challenge mechanic which was not implemented in that release.
  • The MASTER chart incorporates 24th-note trills before the countdown section and features hold patterns similar to those appearing in 'Mare Maris,' another Laur track from the same version.
  • Mutation was selected as the final round song for the KING OF Performai The 5th event in the CHUNITHM International Version.
  • The song later appeared in CHUNITHM LUMINOUS starting February 29, 2024, initially unlockable via National Matching for the eight finalists of KING OF Performai The 5th, before becoming default in LUMINOUS PLUS.
  • The in-game flavor text ties Mutation to the Metropolis Area lore, where a hacked monitor system displays a robot named Eesh who delivers an ultimatum regarding Kurohime and reveals knowledge of the Nirai Kanai Plan.

FAQ

Who composed Mutation in maimai?
Mutation was composed by Laur, a trackmaker and DJ affiliated with HARDCORE TANO*C known for blending classical and metal elements into hardcore electronic music.
What maimai version did Mutation first appear in?
Mutation debuted in maimai DX Splash on October 16, 2020, as part of the Metropolis Area 3 Perfect Challenge content.
What BPM is Mutation in maimai?
Mutation is listed at 155 BPM, but the kick drum speed makes it effectively feel like 310 BPM, classifying it as a speedcore track.
Who designed the MASTER chart for Mutation?
The MASTER chart (Level 14) was designed by 小鳥遊さん (Takanashi-san).
Who designed the EXPERT chart for Mutation?
The EXPERT chart (Level 12) was designed by サファ太 (Safata).
Does Mutation appear in any other rhythm games?
Yes, Mutation later appeared in CHUNITHM LUMINOUS, where it was initially unlockable via National Matching for KING OF Performai The 5th finalists before becoming a default song.
What does the title Mutation mean?
The title is an English word meaning 'sudden mutation,' and Laur has drawn a thematic connection between this track and his earlier WACCA song 'Metamorphose,' both centered on dramatic musical change.
How was Mutation originally unlocked in maimai DX Splash?
It was unlocked through a Perfect Challenge in Metropolis Area 3 after reaching 756 km of travel distance. From maimai DX UNiVERSE onward, it became available by default.

External Links

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