This is a project meant to convert .osu files for the osu!mania mode only (so far). It was requested by @Piggy_BopTV, and is currently a work in progress. Click the green flag and listen.
I have yet to convert the note data completely, but it can now parse the timing and sound effect of the notes. If there is no finished converter by the time you visit this project, come back at a later time! Also, if you are looking for a working osu!mania parser with proper gameplay, check out OilBomby's osu!mania project! https://scratch.mit.edu/projects/220672247/