This is pretty addictive. It is hard but in a good way. All I would change is in terms of the art style I would have simple hand drawn sprites for the platforms and borders so they match the rest of the art style, and as it's a game that resets a lot when you die, maybe looping the music when the scene reloads would be nice so that you don't keep going back to that first beat. All in all solid entry, good job!