This game is on the harder side. You need to memorize the bosses' attack pattern and time your attack, or you will be punish severely. I am surprised by how many attack pattern the bosses have, not to mention they have multiple phases with more attack patterns. Unfortunately, the game is too hard for me to really enjoy that.
The first boss with the claw have a dash attack and fake dash attack followed by the real one. The dash attack punish you when being too close to the boss but the fake dash attack punish you when being to far from the boss. The problem with these attack are they have identical visual cue, the only different that the dash attack have the hitbox appears sooner. But when you notice that, it's already too late.
The second boss seems to have a bullet hell approach but the player hitbox is too large and the bullets are too direct and fast for that. The third boss with the chainsaw sometimes swing her weapon to the left when facing right and vice versa. Well, I cannot say much for these two bosses because I spent the majority of the game fighting the first boss.
The character movement also feels sluggish, and the enemy can easily body block you. This is quite a problem because the game mechanic is revolving around evading enemy's attacks and looking for opening to attack.
That being said, I actually like the game. The hammer attack feels powerful and the art style is cute and beautifullyanimated. The game needs balancing but overall it is a good game. Good work!