Realized I had some ideas for a harder difficulty. So the hp of the enemies is good, but their variety for the first levels could be improved. Maybe with an enemy with a shield that you have to hit from behind or an enemy that can dodge you swings if your careless. Another part is hoodie has too much HP. Even in my first run, where I barley used donuts on hoodie at all, I rarely got hit and don't need to heal. So maybe rescuing her HP and healing could make it harder without making it too hard or unfun.