cosMo@BousouP (暴走P) Guide for Anime & Vocaloid Fans: Where to Start + Must-Listen Tracks

cosMo@BousouP

Why anime fans keep bumping into cosMo@BousouP



If you’re into anime culture beyond just TV seasons—think conventions, Vocaloid concerts, rhythm games, and the internet music scene—you’ve probably heard cosMo@BousouP (also known as “Bousou-P”).
He’s famous for high-speed, high-intensity Vocaloid songs that feel like boss battles, and his music shows up everywhere from fan playlists to rhythm-game communities.



Quick facts (so you can place him instantly)



  • Name: cosMo@BousouP (暴走P)

  • Known for: “THE END OF HATSUNE MIKU (Hatsune Miku no Shoushitsu)”, “Machine Gun Poem Doll”, “R.I.P. Gossip Sea”, “YAMINABE!!!!”

  • Started as a Vocaloid producer: late 2000s (Nico Nico era)

  • Also does visuals: often creates illustrations for his own music videos

  • Big official milestone: wrote the theme song for “Hatsune Miku: Magical Mirai 2021” (“Hatsune Creation Myth”)



Start here: 4 essential tracks (with official videos)



These picks cover the “cosMo experience” in 10 minutes: speed, density, dark humor, and the rhythm-game brain.



1) THE END OF HATSUNE MIKU (初音ミクの消失)



The legendary “fast goodbye song.” Even if you’re not deep into Vocaloid, this track is one of the cultural touchstones that many anime fans recognize by name.




2) Machine Gun Poem Doll (マシンガンポエムドール)



If you found cosMo through rhythm games (especially Project SEKAI communities), this is the “welcome to chaos” anthem—rapid-fire words, relentless momentum, and instantly memeable energy.




3) R.I.P. Gossip Sea (R.I.P.ゴシップの海)



A darker, sharper side of cosMo—still aggressive, but with a mood that hits differently. If you like the “internet culture horror” flavor some modern anime taps into, this one clicks fast.




4) YAMINABE!!!! (ヤミナベ!!!!)



Pure “what did I just listen to?” fun—tempo chaos, sudden turns, and a short runtime that makes it dangerously replayable.
If your anime taste includes absurd comedy or “break the rules” editing, this track feels oddly familiar.




One more track if you love big “event” energy


Hatsune Creation Myth (初音天地開闢神話) — Magical Mirai 2021 theme



This one is made for the “festival / concert / opening ceremony” feeling—perfect if you enjoy anime event culture, live shows, and that “we’re starting something huge” vibe.




How to explore next (simple routes)



  • If you came from anime fandom: start with “THE END OF HATSUNE MIKU” → “Hatsune Creation Myth” → then dive into the darker/weirder tracks.

  • If you came from rhythm games: “Machine Gun Poem Doll” → “YAMINABE!!!!” → then explore album crossfades and short tracks.

  • If you like lore/visuals: check the official channel—cosMo often handles MV visuals too.



Official links




Note: If you plan to use cosMo’s music in your own videos (covers, edits, etc.), always check the usage rules on the official site first.


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