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Also known as: Hua Ka Yin Wu (CN), Wacca
Developer: Marvelous Entertainment
Publishers: Marvelous Entertainment (INT/JP), Unis Technology (CN)
Platform: Arcade (Sega ALLS HX)
Released internationally: July 18, 2019
Released in JP: July 18, 2019
Released in CN: July 2, 2020

MusicIcon.png This game has unused music.
RegionIcon.png This game has regional differences.
Carts.png This game has revisional differences.

This article is a work in progress.
...Well, all the articles here are, in a way. But this one moreso, and the article may contain incomplete information and editor's notes.
See, this is why server preservation is important.
This game's online features are no longer supported.
While this game's online features were once accessible, they are (as of September 1, 2022 (World)) no longer officially supported and online-exclusive features may be documented as now-unseen content.

WACCA is a rhythm game developed in collaboration with indie record label HARDCORE TANO*C.

v3.10.00, the final update for both the Japanese and International versions, deleted most of the songs and removed the ability to connect to the ALL.net service or install updates from a USB drive. The Chinese version received a slightly different final update (v3.50.00) which retained online functionality.

To do:
Add deleted songs from Hololive.

Unused Songs

These songs were leftover in the early versions of the game. Songs which had artists are never released, and some test songs or defunct ID also included.

ID Asset ID Song Title Artist Version sign Appeared version Notes
99002 S99-002 MY ROOM TEST N/A N/A All
99003 S99-003 SLIDE TEST N/A N/A All
99099 S99-099 TAP TEST N/A N/A All
1007 S01-007 Butter-Fly 和田光司 WACCA 1.00.00 No icon or music files. Deleted in v1.00.01.
1025 S01-025 DANZEN!ふたりはプリキュア〜唯一無二の光たち〜 プリキュアオールスターズ WACCA 1.00.00 No icon or music files. Deleted in v1.00.01.
N/A S01-028 Shiny Seven Stars! 一条シン(寺島惇太)・太刀花ユキノジョウ(斉藤壮馬)・香賀美タイガ(畠中祐)・十王院カケル(八代拓)・鷹梁ミナト(五十嵐雅)・西園寺レオ(永塚拓馬)・涼野ユウ(内田雄馬) N/A 1.00.00 No icon and music files. Deleted in v1.00.01, no ID (it should be 1028).
1053 S01-053 ヨドバシカメラのテーマ CM NETWORK WACCA 1.00.00 No icon and music files. Deleted in v1.00.01.
1096 S01-096 ハム太郎とっとこうた

→Asset S01-020

ハムちゃんず WACCA 1.00.00 No icon and music files. Deleted in v1.00.01. Song S01-020 is ないものねだり.
N/A S01-103 →Music MER_BGM_S01_020


N/A N/A ALL Defunted ID 1103.
N/A S01-266 xxxing N/A N/A 1.50.00 It had an MV and should have been released with WACCA S, but was never released.
N/A S01-277 MER_BGM_S01_277 N/A N/A ALL Defunct ID 1277.
N/A S02-057 →Music MER_BGM_S02_077


N/A N/A ALL Defunct ID 2057.
N/A S02-061 →Music MER_BGM_S02_077


N/A N/A ALL Defunct ID 2061.
N/A S02-201 →Music MER_BGM_S02_204

叩ケ 叩ケ 手ェ叩ケ

N/A N/A ALL Defunct ID 2201.
N/A S03-043 →Music MER_BGM_S02_001


N/A N/A 3.10.00 Defunct ID 3043. The song 秒針を噛む deleted in v3.10.00.

Regional Differences

All versions have more or less the same UI, but the logo and advertisement will have different language between countries; it depends on the country code.


The Japanese and International versions used Amusement IC-compatible cards to log in. The Chinese version lacked this capability, instead asking you to use your phone to scan an on-screen QR code to log in.


The icons for the songs 非実在系女子たちはどうすりゃいいですか? and ソロモン・ナイト were replaced in the Korean version due to nudity.

The Chinese version ousted all Hololive-related tracks after Hololive's parent company Cover Corporation withdrew from the country entirely in late 2020 (more info here). As a result, the final Chinese version has less tracks than the final Japanese and International versions.