So You Want to Play Rhythm Games With Hololive Content
It's actually not as straightforward as you'd think. There isn't one single game called Hololive Rhythm Game Collabs. Instead, multiple rhythm games have released collab events featuring Hololive talent, and each one works differently. The main ones people actually ask about are Taiko no Tatsujin, Project Sekai: Colorful Stage!, and occasionally Muse Dash or mobile rhythm titles depending on the region. I've spent way too many hours setting this up across different platforms, so here's the rundown without the hype. DLTaiko, the PC frontend for Taiko no Tatsujin, was the original go-to for playing Hololive collab songs offline. It parsed the romfs from a retail Taiko cartridge or the Switch digital version and let you play the songs as standalone files. The Hololive collab songs would show up if your source had them. This method worked well until Bandai Namco started pushing anti-piracy measures and DLTaiko development stalled out around 2023-2024. A lot of people lost access to their setups overnight. The current working approach for Taiko content involves using DLTaiko's successor projects or switching to ryusyn's fork which picked up some of the abandoned work. You still need a legit copy of the game data, either dumped from your own Switch cartridge or purchased from the eShop. I had a specific issue last year where certain Hololive collab character skins wouldn't load properly after a system update changed how the romfs was structured. The fix was stripping the encrypted partitions separately and re-merging them with a slightly different toolchain version. I used switch_tool combined with Python scripts from the DLTaiko GitHub repos to rebuild the data in a format the frontend would accept. Takes about twenty minutes if you know what you're doing, probably two hours the first time.
For Project Sekai, it's simpler because the collab content is built into the official game. Hololive had a proper collaboration event with character outfits, song packs, and voice lines integrated directly. You just download the game from your platform's store, complete the in-game event requirements, and the content unlocks. The catch is that Project Sekai's collab events are time-limited. If you miss the window, the songs and costumes disappear until they potentially return for a rerun, which happened with the Hololive collab roughly a year after the initial event. Not guaranteed though. Don't count on it coming back. Muse Dash also had a Hololive collab that included character skins and dedicated song tracks. That one is permanently available now, which is unusual for these types of partnerships. You download Muse Dash normally and the collab content appears in the shop or event section depending on your region's version. The biggest thing beginners miss is that not all Hololive collab rhythm game content is region-locked the same way. Japan-region Taiko data will have different collab songs than the global version. Some Hololive songs only appear in specific regional releases. I learned this the hard way when I dumped a European Taiko cart and realized three Hololive collab tracks were missing because they were Japan-exclusive promotion tie-ins. You need to know which region your data comes from before you invest time in the setup process.
Another counter-intuitive detail: having the collab content doesn't mean you can play it in every frontend. DLTaiko and similar projects have selective compatibility lists. Just because a song exists in your romfs dump doesn't mean the frontend can render it. Some Hololive collab songs use modified chart formats or extra audio stems that older frontend versions don't support. Check the compatibility wiki before you go digging through dumps. If you just want to play the songs casually without modding anything, your safest bet is the official Muse Dash route or waiting for a Project Sekai rerun event. If you want the Taiko experience with full character customization and offline play, you're looking at a more technical process that may break again whenever Nintendo or Bandai Namco pushes an update. That's the reality of rhythm game collab modding right now. It works until it doesn't, and there's usually no warning.
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