Thanks, I really appreciate your feedback! This game obviously needs a lot of refinement and some of the issues can be fixed easily but the note chart mapping in particular is really difficult to fix due to the engine I'm using and me just not being that experienced. Also I don't have a proper chart editor meaning the button placement is complete estimation.
I think I focused too much on getting as much levels made as possible rather than refining the core mechanics. I don't really know what to do with the game right now, I have a solid foundation for something good but I'm too incompetent to fix all of its glaring issues. I was actually planning on turning this into a parappa the rapper rap remix mod which would make song creation way easier but it means I would have to restart this whole project and I feel as if making it a rap remix mod would be stealing your hard work.
I'll try to fix this game and hopefully in a few months from now it should be way higher quality.