I really like the mechanic of clicking on the walls to jump between them and I think it's great that the bosses make you use that mechanic in different ways to avoid them and damage them.
The bosses feel fun, varied and challenging! and I love the attention to detail in the user interface.
In the fish boss I think that the little bubbles that the boss leaves could perhaps be a little bigger to notice them more easily, but even without that, I think they are a good way to learn to pay more attention to what is happening on the screen.
Something I appreciate a lot is the text that says it is important to take a break to protect your eyes.
I enjoyed it a lot! :D