Holy shit they really needed to have done something about the dogshit hitboxes before releasing this witch boss. She loves spamming shields and moonjumps and because of how the platforms are coded, you are constantly clipping through them randomly, so by the time you actually get up to her to even try breaking the shield, she's recovered a ridiculous amount of her health from her regen and that's not even counting the chance that she uses her long as hell ultimate, where the regen is still active.
It still has the issue where you just randomly get launched depending on where you and the boss are at when your hitboxes start hugging, the cursor of the pause menu is almost always broken and the autosave STILL always triggers every time you enter the level select, making manual saves potentially detrimental.
Like overall the game isn't even hard, just atrociously buggy.