Who composed Jack-the-Ripper◆?

Jack-the-Ripper◆ was composed and arranged by sasakure.UK, a prominent figure in the BMS/doujin scene known for many rhythm game crossover appearances.

What version of maimai added Jack-the-Ripper◆?

Jack-the-Ripper◆ was added to maimai GreeN PLUS on July 17, 2014, and has remained available in all subsequent versions.

What BPM is Jack-the-Ripper◆ in maimai?

The song runs at 210 BPM. (The rock cover version used in ONGEKI is 240 BPM.)

Who designed the MASTER chart for Jack-the-Ripper◆?

The MASTER chart (level 14, constant 14.1) was designed by a notes designer credited as Jack. The EXPERT chart was designed by mai-Star.

What genre is Jack-the-Ripper◆ in maimai?

It is categorized under GAME & VARIETY (ゲーム＆バラエティ) in maimai.

Where did Jack-the-Ripper◆ originally come from?

It originated as an entry in THE BMS OF FIGHTERS 2009 (BOF2009), a Be-Music Source song contest, where it placed 2nd overall.

Does Jack-the-Ripper◆ have lyrics?

No, Jack-the-Ripper◆ is an entirely instrumental track.

What other rhythm games feature Jack-the-Ripper◆?

Beyond maimai, Jack-the-Ripper◆ appears in CHUNITHM PLUS, SOUND VOLTEX, Groove Coaster, and Tone Sphere. A separate rock arrangement is also featured in ONGEKI R.E.D.

Jack-the-Ripper◆, maimai GreeN PLUS BMS Song by sasakure.UK

All songs

Overview

Jack-the-Ripper◆ is an instrumental progressive BMS track by sasakure.UK that originated from THE BMS OF FIGHTERS 2009 (BOF2009), an annual Be-Music Source song contest, where it placed 2nd overall. Released during the height of the doujin BMS scene, the track was later ported to multiple commercial rhythm games, beginning with maimai GreeN PLUS on July 17, 2014. Its high BPM of 210, driving synth work, and dark, theatrical atmosphere, complemented by a music video from Yasutaka Senoo (Sta), established it as an early standout in sasakure.UK's cross-arcade catalog. In maimai, Jack-the-Ripper◆ is categorized under GAME & VARIETY (ゲーム＆バラエティ) and has undergone several difficulty adjustments across versions. Its MASTER chart, currently set at level 14 with a constant of 14.1, was designed by a notes designer credited simply as Jack, a fitting alias given the song's title. The EXPERT chart was handled by mai-Star. The MASTER chart is known for its dense streams of 741 Tap notes across a total of 933 notes at sustained 210 BPM, demanding strong stamina and precise hand coordination from players. The song also appears in CHUNITHM PLUS, SOUND VOLTEX, Groove Coaster, and Tone Sphere, making it one of the more widely circulated BMS exports in the rhythm game ecosystem.

Videos

Official PV

Open

Master chart

Open

Expert chart

Open

Charts

STD

BASIC

5(5)

191 notesDesigner: -|Tap 151Hold 25Slide 5Break 10

YouTube

ADVANCED

9(9)

467 notesDesigner: -|Tap 436Hold 7Slide 10Break 14

YouTube

EXPERT

12(12.2)

610 notesDesigner: mai-Star|Tap 451Hold 88Slide 44Break 27

View chart YouTube

MASTER

14(14.1)

933 notesDesigner: Jack|Tap 741Hold 85Slide 94Break 13

View chart YouTube

Trivia

Jack-the-Ripper◆ was originally created for THE BMS OF FIGHTERS 2009 -revolutionary battles- (BOF2009), an annual Be-Music Source competition, where it finished 2nd overall behind another entry.
The BMS genre tag assigned to the original file was 'progressive', reflecting its intricate time-feel and evolving structure.
The music video was created by Yasutaka Senoo, known by his alias Sta, who has contributed visuals for numerous BMS and rhythm game tracks.
The version used in maimai and CHUNITHM is a remastered recording that appears on sasakure.UK's album MetroJackz.
A separate rock arrangement titled Jack-the-Ripper♦♠♥♣ by BlackJacksBand appears on the BOF2009 compilation album Groundbreaking -BOF2009 COMPILATION ALBUM-.
A rock cover by the band 有形ランペイジ (Yuukei Ranpeiji), featuring sasakure.UK on composition with guitar by Hidehisa Sasaki, appears in SEGA's ONGEKI R.E.D. at a higher BPM of 240.
The MASTER chart designer is credited as Jack, sharing his name with the song's subject (Jack the Ripper). The EXPERT chart was designed by mai-Star.
Jack-the-Ripper◆ has no lyrics, it is an entirely instrumental track.
In CHUNITHM, the song received a WORLD'S END chart (速☆2 difficulty) with 2,000 notes, designed by a creator using the handle 三|'ω'|ﾉｼ　ｷｭﾜｰﾝ.
The song's difficulty levels in maimai have been adjusted multiple times across versions: the MASTER chart started at level 12 in GreeN PLUS and was raised incrementally over the years, settling at 14 as of the BUDDiES version.
Jack-the-Ripper◆ is the only BMS song in the CHUNITHM series up to CHUNITHM AIR PLUS that does not appear on the BEST MUSIC SELECTION -CHUNITHM VARIETY SOUNDTRACK- album.

FAQ

Who composed Jack-the-Ripper◆?: Jack-the-Ripper◆ was composed and arranged by sasakure.UK, a prominent figure in the BMS/doujin scene known for many rhythm game crossover appearances.
What version of maimai added Jack-the-Ripper◆?: Jack-the-Ripper◆ was added to maimai GreeN PLUS on July 17, 2014, and has remained available in all subsequent versions.
What BPM is Jack-the-Ripper◆ in maimai?: The song runs at 210 BPM. (The rock cover version used in ONGEKI is 240 BPM.)
Who designed the MASTER chart for Jack-the-Ripper◆?: The MASTER chart (level 14, constant 14.1) was designed by a notes designer credited as Jack. The EXPERT chart was designed by mai-Star.
What genre is Jack-the-Ripper◆ in maimai?: It is categorized under GAME & VARIETY (ゲーム＆バラエティ) in maimai.
Where did Jack-the-Ripper◆ originally come from?: It originated as an entry in THE BMS OF FIGHTERS 2009 (BOF2009), a Be-Music Source song contest, where it placed 2nd overall.
Does Jack-the-Ripper◆ have lyrics?: No, Jack-the-Ripper◆ is an entirely instrumental track.
What other rhythm games feature Jack-the-Ripper◆?: Beyond maimai, Jack-the-Ripper◆ appears in CHUNITHM PLUS, SOUND VOLTEX, Groove Coaster, and Tone Sphere. A separate rock arrangement is also featured in ONGEKI R.E.D.