The background shaders are cool, art is simple and enjoyable, movement is precise and forgiving, well suited for this kind of platforming. I enjoyed the sound effects. I wish I could navigate the menus with the same controls I play the game with as taking my hand of the arrow keys to click retry takes me out of the flow a bit. I'm not sure if the scoring is bugged as sometimes I collect many Star Lights and get a score of 0 when I die.
Overall, fun game!