Cool game. I liked that you can beat off projectiles, it was just "wow" when it happened by accident. The bosses are difficult, each requires its own approach. But I would rank them in order of passing from easy to difficult. For me, the avocado was the easiest, and the dog was the hardest.
I also noticed a bug, the damage from the sword is only inflicted when colliders touch, if you rotate the mouse too quickly, the sword can simply pass through the enemy and not cause damage.