Who composed ほとんど違法行為 for maimai?

The song was composed and arranged by Kenji Fujisawa (藤澤健至).

What version of maimai added ほとんど違法行為?

The song was added in maimai ORANGE on December 4, 2014, and was later removed from the arcade lineup on December 14, 2017.

Who designed the charts for ほとんど違法行為 in maimai?

The Expert chart (level 8) was designed by rioN, and the Master chart (level 10+, constant 10.6) was designed by mai-Star.

Who are the vocalists for ほとんど違法行為?

The song is performed by the duo Neko Neko Kawaii (ネコネコカワイイ). Neko-chan is voiced by Hiromi Igarashi (五十嵐裕美), and Kawaiiko is voiced by Yumi Uchiyama (内山夕実).

What does ほとんど違法行為 mean in English?

The title translates roughly to 'Almost Illegal Act' or 'Nearly Illegal Conduct.'

Why was ほとんど違法行為 removed from maimai?

The song was delisted on December 14, 2017, as part of regular content rotation. The specific licensing or contractual reason has not been publicly detailed by Sega.

Is ほとんど違法行為 available in Asian English versions of maimai?

The song was available in Asian English releases before its removal in 2017. In those versions, the artist credit was shortened to simply 'Neko Neko Kawaii' without the Ninja Slayer reference.

ほとんど違法行為 (Hotondo Ihou Koui), maimai ORANGE Song from Ninja Slayer...

All songs

Overview

ほとんど違法行為 (Hotondo Ihou Koui, "Almost Illegal Act") is a song from the Ninja Slayer (ニンジャスレイヤー) franchise that joined the maimai arcade lineup in the ORANGE edition on December 4, 2014. The track is performed by the in-universe idol duo Neko Neko Kawaii (ネコネコカワイイ), a pair of android characters from the Ninja Slayer world: Neko-chan (voiced by Hiromi Igarashi) and Kawaiiko (voiced by Yumi Uchiyama). Composition and arrangement were handled by Kenji Fujisawa (藤澤健至). In maimai, the song was initially categorized under the ANIME genre during the ORANGE and ORANGE PLUS versions, then reclassified as POPS & ANIME from maimai PiNK onward. Its Master chart, designed by mai-Star at level 10+ (constant 10.6), and Expert chart, designed by rioN at level 8, represent the charting style of the mid-2010s maimai era. The song was delisted from arcade cabinets on December 14, 2017, and is no longer available in standard rotation. In Asian English versions of the game, the artist credit was simplified to "Neko Neko Kawaii," omitting the Ninja Slayer reference. An official promotional short titled "カタナ・ソード・アンド・オイラン・ソーサリー" (Katana Sword and Oiran Sorcery) accompanies the song, adapting a Ninja Slayer short story of the same name.

Videos

Official PV

Open

Charts

STD

BASIC

4(4)

125 notesDesigner: -|Tap 111Hold 6Slide 3Break 5

YouTube

ADVANCED

6(6)

346 notesDesigner: -|Tap 327Hold 8Slide 5Break 6

YouTube

EXPERT

8(8)

351 notesDesigner: rioN|Tap 259Hold 23Slide 57Break 12

YouTube

MASTER

10+(10.6)

424 notesDesigner: mai-Star|Tap 322Hold 27Slide 56Break 19

YouTube

Trivia

ほとんど違法行為 originates from the Ninja Slayer (ニンジャスレイヤー) franchise, where it is performed in-universe by the android idol duo Neko Neko Kawaii, two Oirandoroido (Sexaroido) characters named Neko-chan and Kawaiiko.
Neko-chan is voiced by Hiromi Igarashi (五十嵐裕美), who also voices the cat character Salt (ソルト) that debuted in maimai MiLK, forming an unintended cat-themed connection between the two roles.
Kawaiiko is voiced by Yumi Uchiyama (内山夕実), a voice actress known for roles in anime such as Kin-iro Mosaic and The Idolmaster Cinderella Girls.
Composition and arrangement for the track were handled by Kenji Fujisawa (藤澤健至), a composer with credits across Japanese animation and game soundtracks.
The song was removed from maimai on December 14, 2017, roughly three years after its debut, making it inaccessible on modern arcade cabinets in standard rotation.
Its genre classification changed over time: categorized as ANIME during maimai ORANGE and ORANGE PLUS, then switched to POPS & ANIME starting from maimai PiNK through MURASAKi PLUS.
The official promotional video for the song is titled 'カタナ・ソード・アンド・オイラン・ソーサリー' (Katana Sword and Oiran Sorcery) and corresponds to a Ninja Slayer short story published on the franchise's official website.
Despite the Master chart sitting at level 10+ (10.6), the Expert chart (level 8) actually contains one more Slide note (57) than the Master chart (56 Slide notes), an unusual distribution for the two difficulties.
In Asian English releases of maimai, the artist credit reads simply 'Neko Neko Kawaii' without the parenthetical 'ニンジャスレイヤー' (Ninja Slayer) reference present in the Japanese version.
The song title ほとんど違法行為 translates roughly to 'Almost Illegal Act' or 'Nearly Illegal Conduct' in English.

FAQ

Who composed ほとんど違法行為 for maimai?: The song was composed and arranged by Kenji Fujisawa (藤澤健至).
What version of maimai added ほとんど違法行為?: The song was added in maimai ORANGE on December 4, 2014, and was later removed from the arcade lineup on December 14, 2017.
Who designed the charts for ほとんど違法行為 in maimai?: The Expert chart (level 8) was designed by rioN, and the Master chart (level 10+, constant 10.6) was designed by mai-Star.
Who are the vocalists for ほとんど違法行為?: The song is performed by the duo Neko Neko Kawaii (ネコネコカワイイ). Neko-chan is voiced by Hiromi Igarashi (五十嵐裕美), and Kawaiiko is voiced by Yumi Uchiyama (内山夕実).
What does ほとんど違法行為 mean in English?: The title translates roughly to 'Almost Illegal Act' or 'Nearly Illegal Conduct.'
Why was ほとんど違法行為 removed from maimai?: The song was delisted on December 14, 2017, as part of regular content rotation. The specific licensing or contractual reason has not been publicly detailed by Sega.
What is the BPM of ほとんど違法行為?: The song has a BPM of 128.
Is ほとんど違法行為 available in Asian English versions of maimai?: The song was available in Asian English releases before its removal in 2017. In those versions, the artist credit was shortened to simply 'Neko Neko Kawaii' without the Ninja Slayer reference.