Who composed "初音ミクの暴走" (Hatsune Miku no Bousou)?

The song was composed, arranged, and written by cosMo@暴走P (cosMo@Bousou-P), with vocals by Hatsune Miku. It was his second VOCALOID upload to NicoNico Douga and the track that established his Bousou-P alias.

What is "初音ミクの暴走" about?

The song features deliberately absurd, nonsensical lyrics characteristic of early VOCALOID internet culture, references to flat-chestedness (つるぺた), leeks (a Miku meme), and shouted outbursts like "運動会プロテインパワー" (Sports Day Protein Power). Despite the chaotic surface, the song ends with a surprisingly sincere plea for Miku to stay forever.

When was "初音ミクの暴走" added to maimai?

It was added to maimai でらっくす CiRCLE on December 5, 2025 in Japan, and on April 24, 2026 in the Asian version.

Why is cosMo called 暴走P (Bousou-P)?

The alias "暴走P" (Rampage Producer) originated from this very song. Fans coined the name from the track's chaotic, high-speed character at 310 BPM, and cosMo, originally credited as just "cosMo", adopted it permanently.

What difficulty levels does "初音ミクの暴走" have in maimai?

The song has four DX chart difficulties: Basic (level 6), Advanced (level 8+), Expert (level 12+, designed by はっぴー), and Master (level 13+, constant 13.9, designed by サファ太). The Master chart contains 1,091 notes including 121 Break notes.

What are the unlock titles for "初音ミクの暴走" in maimai?

The clear title is "maimai でらっくすをプレイ中のみなさん、こんばんはー、初音ミクです。" (a greeting from Hatsune Miku to players), and the ALL PERFECT title is "運動会プロテインパワー" (Sports Day Protein Power), both directly quoting lines from the song's lyrics.

初音ミクの暴走 (Hatsune Miku no Bousou), maimai DX CiRCLE Song

All songs

Overview

The song "初音ミクの暴走" (Hatsune Miku no Bousou, "Hatsune Miku's Rampage") is a landmark VOCALOID original track by cosMo@暴走P (cosMo@Bousou-P). Uploaded to NicoNico Douga as his second VOCALOID composition and the first entry in his "ボーカロイドにオリ曲を喋ってもらった" (Got a VOCALOID to Talk an Original Song) series, the track carries outsized historical significance: it is the very piece that gave the producer his enduring alias. Fans coined the name "暴走P" (Bousou-P, "Rampage Producer") from the song's uncontrolled, breakneck character, and cosMo, who originally released under just "cosMo", adopted it permanently. Musically, the song is defined by its blistering 310 BPM tempo, among the fastest in the VOCALOID repertoire and an extreme outlier even within maimai's catalog. The composition pairs hyper-speed electronic beats with Hatsune Miku's vocals delivering deliberately absurd, nonsensical lyrics that epitomize early VOCALOID internet culture of the late 2000s. Lines like "つるぺた! つるぺた!!" (flat-chested!) and references to leeks (a Miku-associated meme) sit alongside fourth-wall-breaking outbursts and a simulated system crash message ("深刻なエラーが発生しました", a serious error has occurred). Beneath the chaotic surface, the song closes with a surprisingly earnest plea for Miku to stay with the listener. It originally appeared on the 2008 album ∞-InfinitY-. In maimai でらっくす CiRCLE, the song arrived on December 5, 2025 in Japan and on April 24, 2026 in Asian territories. Its chart lineup spans four DX difficulties, with the Master chart (level 13+, constant 13.9) designed by サファ太 (Safata) packing 1,091 notes, a dense barrage that mirrors the track's frantic pace. The Expert chart (level 12+) was handled by はっぴー (Happy). Both unlock titles pull directly from the lyrics: the clear title greets players with Miku's own spoken introduction from the song, while the ALL PERFECT title quotes the memorable "運動会プロテインパワー" (Sports Day Protein Power) outburst.

Videos

Master chart

Open

Expert chart

Open

Charts

DX

BASIC

6(6)

312 notesDesigner: -|Tap 280Hold 12Slide 4Touch 9Break 7

YouTube

ADVANCED

8+(8.6)

408 notesDesigner: -|Tap 339Hold 14Slide 10Touch 38Break 7

YouTube

EXPERT

12+(12.7)

816 notesDesigner: はっぴー|Tap 678Hold 39Slide 52Touch 20Break 27

YouTube

MASTER

13+(13.9)

1091 notesDesigner: サファ太|Tap 671Hold 159Slide 75Touch 65Break 121

YouTube

Trivia

The producer originally used only the name "cosMo" without the "暴走P" suffix. The overwhelming response to this song led fans to dub him "暴走P" (Bousou-P), a nickname that became his permanent identity.
This was cosMo's second VOCALOID upload to NicoNico Douga and the first entry in his "Got a VOCALOID to Talk an Original Song" series, establishing a format he would revisit in later works.
The song was originally included on the album ∞-InfinitY- in 2008, nearly 17 years before its maimai debut.
The ALL PERFECT title in maimai is "運動会プロテインパワー" (Sports Day Protein Power), directly lifted from one of Miku's shouted nonsensical lines in the lyrics.
The clear title is a full greeting spoken by Miku: "maimai でらっくすをプレイ中のみなさん、こんばんはー、初音ミクです。" (Good evening, everyone playing maimai でらっくす, I'm Hatsune Miku.), mirroring the song's fourth-wall-breaking spoken intro.
At 310 BPM, this is one of the fastest songs in maimai's entire library, placing it among the most extreme-tempo tracks playable in the series.
The Master chart contains 121 Break notes out of 1,091 total, an unusually high Break density that contributes to its demanding 13+ (13.9) difficulty rating.
In Asian regions, the song was released on April 24, 2026, approximately four and a half months after its Japanese debut.
The lyrics include a simulated error message, "深刻なエラーが発生しました" (A serious error has occurred), a meta-textual joke about Miku malfunctioning under the song's breakneck tempo.
The song's genre on NicoNico is niconico & VOCALOID, placing it within the broader niconico douga vocaloid music category in maimai's classification system.

FAQ

Who composed "初音ミクの暴走" (Hatsune Miku no Bousou)?: The song was composed, arranged, and written by cosMo@暴走P (cosMo@Bousou-P), with vocals by Hatsune Miku. It was his second VOCALOID upload to NicoNico Douga and the track that established his Bousou-P alias.
What is "初音ミクの暴走" about?: The song features deliberately absurd, nonsensical lyrics characteristic of early VOCALOID internet culture, references to flat-chestedness (つるぺた), leeks (a Miku meme), and shouted outbursts like "運動会プロテインパワー" (Sports Day Protein Power). Despite the chaotic surface, the song ends with a surprisingly sincere plea for Miku to stay forever.
When was "初音ミクの暴走" added to maimai?: It was added to maimai でらっくす CiRCLE on December 5, 2025 in Japan, and on April 24, 2026 in the Asian version.
Why is cosMo called 暴走P (Bousou-P)?: The alias "暴走P" (Rampage Producer) originated from this very song. Fans coined the name from the track's chaotic, high-speed character at 310 BPM, and cosMo, originally credited as just "cosMo", adopted it permanently.
What difficulty levels does "初音ミクの暴走" have in maimai?: The song has four DX chart difficulties: Basic (level 6), Advanced (level 8+), Expert (level 12+, designed by はっぴー), and Master (level 13+, constant 13.9, designed by サファ太). The Master chart contains 1,091 notes including 121 Break notes.
What are the unlock titles for "初音ミクの暴走" in maimai?: The clear title is "maimai でらっくすをプレイ中のみなさん、こんばんはー、初音ミクです。" (a greeting from Hatsune Miku to players), and the ALL PERFECT title is "運動会プロテインパワー" (Sports Day Protein Power), both directly quoting lines from the song's lyrics.