Loved this game, so cute,  the music slaps

an addition you can make that may be fun is occasionally replacing the yarn with a fish that if the player doesn't knock it away, will give the player a life back

love this art is on point

however I would suggest having a difficulty increase over time (maybe more balls of yarn) 

Cool concept. Like the art too. My criticism would be that you can spam E and win with ease. Perhaps impliment some sort of cooldown mechanic that forces the player to focus on correct timing to avoid taking damage. Could work well with Lol's suggestion too.

A cute little game, the only complaint I have is that the hit box is very vague even if it is quick to figure out. A variety in speed with the yarn balls would also be interesting, maybe assigning them different colours to indicate the different speeds :)