Great game! The music is amazing! I liked the art too. One thing I recommend doing is setting the canvas to scale-with-screen-size, that way you can set a reference size and the bar problem at lvl3 won't happen. (I also had an issue on the first level with the text going off-screen)
If you have the time please check out my game too: https://itch.io/jam/brackeys-4/rate/721332