
I'd like to announce my custom song loader mod for YunYun Syndrome! YunYunLoader is a BepInEx mod that allows you to load your own custom songs and maps into the game.
Just as a disclaimer, this mod DOES NOT allow you to unlock DLC or locked songs for free, mess with the existing songs, or anything of the sort. It has built-in safeguards that prevent any story progression, achievements, or leaderboards when playing modded songs (your scores on modded songs are still saved locally). All it does is let you load and play custom songs without messing up your save file.
The code is completely open source. You can try it out for yourself at the GitHub repo linked below. Installation instructions and a modding wiki are also available.
GitHub Repo: https://github.com/EBro912/YunYunLoader
An open-source web-based editor is also now available for creating custom levels:
Editor: https://ebro912.github.io/YunYunEditor/
GitHub Repo: https://github.com/EBro912/YunYunEditor
Thanks, and enjoy!