Fantastic game as always. You have a formula down for getting mechanics that are so simple yet so unique, and the level design truly makes the most of said mechanics. The artwork and sound effects really contribute to the game and make it even better. Polish and testing is great too, throughout the whole run I only encountered a small bug which was funny and didnt impact gameplay at all. Narrative isn't really there but the game simply doesnt need one. This game is just really well made.
Now I know the feeling of having someone suggest a feature that you tried and felt didnt fit or was left out on purpose. Some stuff I want to say you definitely heard before so I'll skip on them. The only feedback I felt you might need is a small way to show the player that the button is being held, I know it isnt too necessary but at first I got scared that the controls were unresponsive. Overall I really do not have much to say about what can be improved. Congrats on a great submission as always!
Side note: I did say I would leave a comment later. I am currently away so no laptop, but I decided to give the game a try on mobile. Works surprisingly well, almost as good as desktop. Only note is that I think the background music didnt want to load which is always a pain with web submissions. Again, really well done! Long essay, hope you liked the feedback lol