Overview
厨病激発ボーイ (rendered as "Young disease outburst Boy" in Asian English maimai releases) is a high-energy VOCALOID track by producer rerulili (Kouhei Sasaki), featuring Kagamine Len on lead vocals with Rin Kagamine and Hatsune Miku on chorus. Clocking in at 190 BPM with a runtime of 2:21, the song belongs to the niconico & VOCALOID genre in maimai and was first added to the game in the PiNK era. The title fuses 厨病 (a slang abbreviation of 中二病, chuunibyou, the "eighth-grader syndrome" of adolescent delusions of grandeur) with 激発 ("explosive outburst") and ボーイ ("boy"), perfectly capturing the song's lyrical theme: a self-aware parody of a chuunibyou teenager who believes he wields hidden supernatural powers. The song originally appeared on rerulili's 2014 album "Download feat. 初音ミク" and later received an anime adaptation as the opening theme for the 2019 series Outburst Dreamer Boys, performed by a human cover cast. In maimai, the song has undergone multiple level adjustments across versions, the Master chart began at level 11+ in PiNK and has since been re-rated upward to its current 13+ (13.8 constant), reflecting both the chart's enduring challenge and the overall difficulty recalibration of the maimai DX era. The Expert chart (10.6) was designed by ぴちネコ, while the Master chart (13.8) was crafted by はっぴー. Outside of maimai, the song also appears in SEGA's CHUNITHM series, having been added to CHUNITHM STAR PLUS.
Videos
Charts
Trivia
- 厨病激発ボーイ was composed, arranged, and lyricized by rerulili (Kouhei Sasaki), with Kagamine Len providing the lead vocals and Rin Kagamine and Hatsune Miku contributing chorus vocals.
- The song's music video was produced by Hoshima, and the track was mastered by kagomeP.
- It originally appeared on the 2014 album Download feat. 初音ミク, which features rerulili's VOCALOID works.
- A human-cover version of the song was used as the opening theme for the 2019 anime series Outburst Dreamer Boys (厨病激発ボーイ), which follows a group of high school boys with chuunibyou tendencies.
- In Asian English releases of maimai, the song title was localized as 'Young disease outburst Boy' and the artist name romanized to 'rerulili'.
- The Master chart is one of the higher-density 13+ charts in the maimai DX catalog, with 928 total notes, 725 of which are Tap notes, making it a stamina-intensive play.
- The Expert chart (10.6) features a dense layout of 85 Slide notes, unusually high for its level range in the PiNK era.
- The song has undergone several level revisions across maimai versions: its Master chart launched at 11+ in PiNK, was raised to 12 in MURASAKi, 13 in DX+, and eventually settled at 13+ from UNiVERSE+ onward.
- 厨病激発ボーイ also appears in CHUNITHM STAR PLUS, where its Master chart is rated level 13 (later 13 in CHUNITHM NEW onward).
- The lyrics are written from the perspective of a chuunibyou-affected boy, weaving self-aggrandizing delusions with self-deprecating humor, including exaggerated fantasy phrases and a comedic phone-message interlude.
FAQ
- Who composed 厨病激発ボーイ?
- 厨病激発ボーイ was composed, arranged, and written by rerulili (Kouhei Sasaki), a VOCALOID producer known for high-energy pop-rock tracks featuring Vocaloid vocalists.
- What is the English title of 厨病激発ボーイ?
- In Asian English releases of maimai, the song is titled 'Young disease outburst Boy'. The 2019 anime adaptation based on the song is called 'Outburst Dreamer Boys'.
- What version of maimai added 厨病激発ボーイ?
- 厨病激発ボーイ was added to maimai PiNK, SEGA's arcade rhythm game series, as part of the niconico & VOCALOID genre.
- What difficulty is the Master chart for 厨病激発ボーイ in maimai?
- The Master chart is rated level 13+ with a difficulty constant of 13.8, designed by はっぴー. It features 928 total notes with heavy Tap and Slide density.
- Who designed the charts for 厨病激発ボーイ in maimai?
- The Expert chart (level 10+) was designed by ぴちネコ (Pichineko), and the Master chart (level 13+) was designed by はっぴー (Happii).
- Does 厨病激発ボーイ appear in other rhythm games?
- Yes, the song also appears in SEGA's CHUNITHM series, added to CHUNITHM STAR PLUS in July 2018, where its Master chart is rated level 13.
- What is 厨病激発ボーイ about lyrically?
- The lyrics parody chuunibyou, the adolescent 'eighth-grader syndrome' of imagining one has special powers, following a boy who believes he has awakened supernatural abilities. The song blends self-aggrandizing fantasy with comedic self-awareness, including a memorable phone-voicemail interlude.
- What BPM is 厨病激発ボーイ?
- The song runs at a consistent 190 BPM, contributing to its energetic, driving feel.
