Fun game! Love the art and animations and the music was fun as well. I played horribly though lol. Not sure if it was the layout of the notes coming in or what. Maybe having a pulse going with the rhythm along the boxes you have to hit the notes on would help? Also maybe having colored bars lined up with where the notes are going so you can prepare better for what key you need to press? I like that the fireballs point in the direction of the button to press, but other things could help make things easier for the player over all.
Nice work to all!