Nice concept and it is executed wonderfully, the presentation is also great even though it is just basic shapes. I also liked the music
I would suggest making it so the player can not go outside the level, sometimes the enemies could bounce the player outside the level and then I couldn't see what was going on. I would also suggest to improve the camera shake effect a little, the score text in top-left moves weirdly when the camera shakes
Overall an awesome entry to the jam! Great job!