Lovely game! And it's pretty well done too! Loved the tight controls and art style. Also, potion(rocket) jumping! Wished that is used more and expanded upon, I loved that very much.
There are a few nitpicks that I would like to raise, such as the game resuming too quickly after a resetting death resulting in dying over and over to a hazard nearby, or some jumps are a bit tight that it feels like you need to be quite precise to pull off. But these are not game-breaking, so no worries.
Anyway, this is extremely well done! Good job!