I'm not sure if this is known, but I found a glitch and I couldn't find any documentation about it.

If you jump into the projectiles the boss shoots, you are able to jump super high. You can even reach the top of the map, but you can't actually skip anything because the hit stun lasts too long.

I've known this for a long time and am not sure if it's a glitch. But you can't move left or right and you lose the fire.