4th Chorus is the easiest boss that's managed to make a vein appear on my forehead.
>only spams two braindead attacks that make it so you can't attack until he's done attacking
>one of which is a down slam that destroys platforms and exposes lava
>because I-frames in the game are nonexistent this means if you get hit by it you'll also get dragged into lava and hit again
>boss only stands in one spot and is just tall enough to only be hit by up attacks
>between this and the platform destroying means you cannot even attack the boss if he destroys the platforms in front of himself
>because he uses that attack endlessly that means the moment the platforms grow back he'll just destroy them again
>boss fight is right after you get the hover which means every time you jump-attack him you'll be accidentally activating the brand new hover ability that also cancels attacks when activated
>after doing enough damage to knock the boss prone FOUR FUCKING TIMES he reveals there's a Ohko bomb above him the entire time that just couldn't be reached until he's 99% dead because fuck you, that's why
This boss actually feels like it was designed to waste your time. Everything about it is nyquil laced sewage that somehow makes you angry while also putting you to sleep.