Nice game! This really could have used some sort of checkpoint system as it is somewhat demoralizing to get put at the start for a little mistake, perhaps health could also be a good solution to make it a little more forgiving.
While the 3D audio is cool, I think it was a little too extreme since the first part of the game is mostly on one ear, and if you keep losing you will constantly just hear the music on one side.
I liked that theoretically there is an ending point and that you point it out but I wish the game was a little easier lol, I only got to around 2500.