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Overview

源平大戦絵巻テーマソング (Genpei Taisen Emaki Theme Song) is the title track for SEGA's 2012 mobile strategy game 源平大戦絵巻, a tower-defense and trading-card hybrid set during the Genpei War of Japan's late Heian period. The song was composed and arranged by Takahiro Kai (甲斐考博), with lyrics written by the game's producer, Shin-Oda Yuji (新小田裕二), who performs under the alias 新小田夢童 alongside the character vocalist キラ★ロッソ (Kira★Rosso). The result is a high-energy collision of traditional Japanese melody and rap-rock, cycling between classically-inflected passages quoting the famous opening of The Tale of the Heike (「祇園精舎の鐘の声, 諸行無常の響きあり」) and exuberant Engrish shout-along verses that mirror the game's lavish emakimono (picture-scroll) visual style. In maimai, the track was one of the original launch-day songs on July 11, 2012, initially locked behind a player level 50 requirement, a gate that was lifted by the GreeN update. The song's quirky EXPERT chart was affected by a slide-note detection bug in the earliest revision, fixed in maimai PLUS. For the series' 10th anniversary, a Re:Master chart was added on July 11, 2022, designed by 舞舞10年ズ (Chan & Happi). Internationally, the song is localized as "Samurai Bloodshow" in Asian English regions and as "源平大战绘卷主题曲" in the Chinese version (舞萌).

Videos

Re:MASTER chart

Open

Master chart

Open

Expert chart

Open

Official PV

Open

Expert chart

Open

Master chart

Open

Charts

STD

BASIC
6(6)
152 notesDesigner: -|Tap 127Hold 11Slide 12Break 2
ADVANCED
8(8)
231 notesDesigner: -|Tap 178Hold 29Slide 5Break 19
EXPERT
10+(10.6)
376 notesDesigner: 譜面-100号|Tap 312Hold 12Slide 20Break 32
MASTER
12+(12.8)
428 notesDesigner: ニャイン|Tap 325Hold 32Slide 50Break 21
Re:MASTER
14+(14.6)
722 notesDesigner: 舞舞10年ズ(チャンとはっぴー)|Tap 512Hold 16Slide 144Break 50

Trivia

  • 源平大戦絵巻テーマソング is the theme song for 源平大戦絵巻 (Genpei Taisen Emaki), a tower-defense and trading-card game for iOS/Android developed by SEGA. The game casts players as a commander of the Taira clan defending against the advancing Minamoto forces during the Genpei War.
  • The song's lyrics open with the first lines of The Tale of the Heike (平家物語), a classical Japanese epic, before abruptly switching into playful English rap verses, creating a deliberate stylistic dissonance.
  • Composition and arrangement were handled by Takahiro Kai (甲斐考博), a SEGA sound team veteran known for his work on numerous arcade and mobile game soundtracks.
  • Lyrics were written by Shin-Oda Yuji (新小田裕二), the producer of 源平大戦絵巻, who also performs the vocals under the name 新小田夢童 alongside the character vocalist Kira★Rosso.
  • Kira★Rosso is credited as 'Tengai no Shisha' (天界の死者, 'Heavenly Dead Messenger'), and his artist comment in the soundtrack booklet contains a hidden message readable vertically, a common Japanese wordplay device.
  • In the original maimai release, the song was unlockable only by reaching player level 50, a steep requirement at launch. From maimai GreeN onward it became available by default.
  • The EXPERT chart in the earliest maimai version suffered from a bug where a Tap note placed at the endpoint of a Slide note caused the Slide to fail registration. This was corrected in maimai PLUS.
  • 源平大戦絵巻テーマソング was one of only three songs from the original maimai that received no difficulty adjustments in maimai PLUS, alongside JACKY [Remix] and Reach for the Stars.
  • A Re:Master chart was added on July 11, 2022, exactly ten years to the day after the song's original release, as part of maimai's 10th anniversary celebration. The chart was designed by 舞舞10年ズ ('Maimai 10 Years'), a collaboration between note designers Chan (チャン) and Happi (はっぴー).
  • In Asian English versions of maimai, the song is listed as 'Samurai Bloodshow' with artist 'Shin-Oda Mudo & Kira ★ Rosso'. In the Chinese version (舞萌), it appears as '源平大战绘卷主题曲' with artist '新小田梦童 & Kira★Rosso'.
  • The in-game version of the song is an arrangement drawn from the first and second chorus sections of the full track, with a total length of 1:39.
  • The song's jacket and promotional visuals feature komusō (虚無僧), traditional mendicant monks who play the shakuhachi flute, depicted wielding katanas and electric guitars in the music video, reinforcing the song's old-meets-new aesthetic.

FAQ

Who composed 源平大戦絵巻テーマソング?
The song was composed and arranged by Takahiro Kai (甲斐考博), a SEGA sound team composer. Lyrics were written by game producer Shin-Oda Yuji (新小田裕二), who performs the vocals as Shin-Oda Mudo alongside Kira★Rosso.
What is 源平大戦絵巻テーマソング about?
It is the official theme song for SEGA's 2012 mobile game 源平大戦絵巻 (Genpei Taisen Emaki), a tower-defense and trading-card game set during the Genpei War of Japan's late Heian period. The lyrics quote the opening of The Tale of the Heike before shifting into rap-rock verses.
Which maimai version added 源平大戦絵巻テーマソング?
The song was included in the very first maimai arcade release on July 11, 2012. It was initially unlockable by reaching player level 50, a requirement that was removed starting with maimai GreeN.
When was the Re:Master chart for 源平大戦絵巻テーマソング added?
The Re:Master chart was added on July 11, 2022, exactly ten years after the song's original release, as part of maimai's 10th anniversary. It was designed by 舞舞10年ズ (Chan & Happi) and is rated level 14+ (constant 14.6).
What is the English title of 源平大戦絵巻テーマソング?
In Asian English versions of maimai, the song is localized as 'Samurai Bloodshow' with the artist listed as 'Shin-Oda Mudo & Kira ★ Rosso'. In the Chinese version (舞萌), it becomes '源平大战绘卷主题曲'.
What bug affected the EXPERT chart of 源平大戦絵巻テーマソング?
In the original maimai release, the EXPERT chart had a bug where a Tap note placed at the endpoint of a Slide note caused the Slide to fail to register. This was fixed in maimai PLUS.
Who designed the charts for 源平大戦絵巻テーマソング?
The EXPERT chart was designed by 譜面-100号, the MASTER chart by ニャイン, and the Re:Master chart by 舞舞10年ズ, a duo credited as 'Chan & Happi'.