Hey, looks like Unity has a serious security vulnerability, it affects all games made in unity since version 2017.1 and we as devs have to patch our games or rebuild them, wonderful news to wake up to.

You can read the full thingy from Unity here

As for Touhou Fumo Racing I patched the latest version ( 0.2.1 ) and the others are unpatched, but they are still there for preservation, use at your own risk!

I recommend you all to redownload it, just download the latest file which has the same name and version number but it is patched and has the same date as this post.