Overview
インフェルノ (Inferno) is a high-energy J-rock track by Mrs. GREEN APPLE, best known as the opening theme of the anime Fire Force (炎炎ノ消防隊). Written, composed, and performed by frontman Motoki Ohmori, the song pairs driving guitar riffs and a punchy brass section with a soaring, melodic chorus, capturing the series' themes of blazing through darkness and defying fate. Released as a single in 2019, it became one of the band's most recognizable hits.
The song joined the maimai song list on March 18, 2021, as part of the DX Splash PLUS launch lineup, using a TV-size edit that condenses its energy into 1:29 at a relentless 185 BPM. Its five DX charts span the full difficulty range: Basic (level 2) and Advanced (level 7) offer accessible entry points, while Expert (level 9+, constant 9.6) through Master (level 11+, constant 11.6) escalate the challenge significantly. The Re:Master chart, a level 13 (constant 13.0) designed by 隅田川星人 (Sumidagawa seijin), demands precise stamina and reading across 487 notes. Notably, each of the three upper difficulties was authored by a different notes designer, 華火職人 (Kanon Oguni) for Expert, 緑風 犬三郎 (Happy) for Master, and 隅田川星人 for Re:Master, giving each chart a distinctive character. Beyond maimai, インフェルノ also appears in SEGA's CHUNITHM series, where it was included from CHUNITHM NEW onward, though regional licensing changes have since restricted its availability in some Asian and Chinese versions.
Videos
Charts
DX
BASIC
2(2)
89 notesDesigner: -|Tap 77Hold 3Slide 2Touch 3Break 4
ADVANCED
7(7)
219 notesDesigner: -|Tap 176Hold 22Slide 8Touch 10Break 3
EXPERT
9+(9.6)
357 notesDesigner: 華火職人|Tap 219Hold 38Slide 54Touch 18Break 28
MASTER
11+(11.6)
442 notesDesigner: 緑風 犬三郎|Tap 278Hold 34Slide 85Touch 13Break 32
Re:MASTER
13(13)
487 notesDesigner: 隅田川星人|Tap 348Hold 16Slide 80Touch 35Break 8
Trivia
- インフェルノ served as the main theme of the anime Fire Force (炎炎ノ消防隊). The song's title, Italian for 'inferno' or 'hell', directly reflects the series' fire-centered premise.
- The track was composed, arranged, written, and performed by Motoki Ohmori, the vocalist and guitarist of Mrs. GREEN APPLE, who also handled chorus, programming, and additional guitar. The recording featured a full live band including brass and organ sections.
- インフェルノ was released as a single in 2019 and became one of Mrs. GREEN APPLE's most commercially successful songs, frequently used in media beyond Fire Force.
- The song was added to maimai DX Splash PLUS on its launch day (March 18, 2021). The Re:Master chart was available from the same date, which was not always the case for new songs added during the DX era.
- The maimai version is a TV-size edit lasting 1:29, cutting the full song's second verse and chorus, the section marked with ※ in the printed lyrics, to fit within a shorter arcade-playable length. The full song runs 2:23 as featured in CHUNITHM.
- Three different notes designers contributed to the upper-difficulty charts: 華火職人 (Kanon Oguni) for Expert, 緑風 犬三郎 (Happy) for Master, and 隅田川星人 (Sumidagawa seijin) for Re:Master, giving each chart a unique pattern identity within the same song.
- The Re:Master chart is rated level 13 with a difficulty constant of 13.0. Its 487 notes are heavily skewed toward Tap notes (348) with a relatively low Break note count (8), focusing the challenge on rhythmic precision and endurance rather than gimmick scoring.
- インフェルノ also appears in SEGA's CHUNITHM series, where it was added at the launch of CHUNITHM NEW across all regions. However, it was removed from the Asian version starting with CHUNITHM LUMINOUS and from the Chinese version starting with 中二节奏 2024 due to music licensing changes, restrictions that did not affect the maimai version.
- The song is categorized under POPS & ANIME (POPS＆アニメ) in both maimai and CHUNITHM, reflecting its origin as an anime theme song.
FAQ
- Who composed インフェルノ?
- The song was composed, arranged, and written by Motoki Ohmori, frontman of Mrs. GREEN APPLE. He also handled vocals, chorus, programming, and guitar on the recording.
- What anime is インフェルノ the opening theme for?
- It is the main theme for Fire Force (炎炎ノ消防隊), an anime series about firefighters battling supernatural fire phenomena.
- When was インフェルノ added to maimai?
- It was added to maimai DX Splash PLUS at launch on March 18, 2021, with all five charts including the Re:Master available from day one.
- What difficulty are the インフェルノ charts in maimai?
- The five DX charts span Basic (level 2), Advanced (level 7), Expert (level 9+, constant 9.6), Master (level 11+, constant 11.6), and Re:Master (level 13, constant 13.0).
- Who designed the Re:Master chart for インフェルノ?
- The Re:Master chart was designed by 隅田川星人 (Sumidagawa seijin). The Expert chart was designed by 華火職人 (Kanon Oguni) and the Master chart by 緑風 犬三郎 (Happy).
- Is the maimai version of インフェルノ the full song?
- No. The maimai version is a TV-size edit lasting 1:29, corresponding to the shortened version used for the Fire Force opening. The full song runs 2:23 and appears on the 2019 single インフェルノ.
- What BPM is インフェルノ?
- The song runs at 185 BPM throughout, maintaining a fast, driving tempo that matches its energetic J-rock style.
- Is インフェルノ available in other rhythm games besides maimai?
- Yes, it also appears in SEGA's CHUNITHM series, where it was added at the launch of CHUNITHM NEW. However, its availability in CHUNITHM was later restricted in Asian and Chinese versions due to licensing changes, restrictions that did not affect the maimai version.
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