Great game! I like how you progressively introduce new elements, it's just the right balance to keep things interesting without it becoming overwhelming. I've seen this concept before, but never with a mirror. I bet the mirror was tricky to implement! The sounds are also satisfying and the little walking animation is super cute. It would make for a great mobile game.
One thing I would improve is adding a mini-tutorial/telling the player what to do (could just be an arrow pointing to the "handles" that says "click this" at the start of the second level). It wasn't immediately clear to me, what the do; I figured it out because I played similar games before, but not all people have.
Great game, impressive work!