The different instrument tracks were well made and the layering when all 3 were playing at the same time was awesome! I did 2nd play through to just listen to them again! The art is also wonderful especially the title screen / Itch.io logo illustration.
I also second that the text and font in game could be bigger and maybe black, since the white tends to fade into the blue background.
Also big props on going in with new engine in such a short time! Hope you had fun, learned a lot and continue this continue further after the jam :D