Very cute game with fun theming and good art! I played through a second time and had a lot of fun finding all the hidden fuses!
Falling/jumping down onto a quarter circle slope (most prominent ~3/4 of the way through) would grind you to a halt when I was expecting to "slingshot" down and up the left edge.
The checkpoint system was very nice, though being one shot did make some difficult sections even more difficult. It somewhat felt like "if you play well you can ignore damage but if you are struggling you will struggle more" due to that, but it is also a system that rewards good play which may be fair for a score attack type game like this!