This is awesome! Love the art style and player movement & abilities. The art style is super cute and the game feels really juicy. One of the best I've played so far :D
My main critique would be the enemies. They are all pretty similar in design and mainly just run towards the player. Usually, I only died if I accidentally ran into one.
Also making them less "bullet spongy" though with the other effects this isn't super important and mostly my preference (Btw love the way you've tied the permanence of their corpse and gameplay together with the bubble)
Overall I feel like with general polish (similar to Vlambeer games maybe) and more engaging enemies this would be fantastic. Amazing Job :D