I'm not sure if you know but, at first I thought the arrows moved the player, not WASD. The arrow keys make the player fly super fast and fall out of the level, so if you go back to this it'd be good to remove that. Also when I got to level 2 (I think it's level 2 at least?) The music suddenly stopped altogether. Otherwise I enjoy the movement a lot, it can be super satisfying when I am able to get it under control, but it is rather easy to lose control also.