Sinks into the ground and fires shots in various patterns while being invulnerable to the player's attacks.
Shoots out three red tears that split into smaller tears several times.
Fires two laser beams from his eyes that follow the player very closely, but will never really be faster than you so you should be able to dodge them as long as you keep moving.
These shots will never hit you when you are in front of the Hush where he is shooting the bullets from, they usually hit when they pass from the other side. They shoot out in a set pattern, though, so you can just stay in one safe spot and be fine.
Fires a barage of wavy shots that pass through the walls and end up coming out the other side and are faster the longer they travel.
He'll spawn a large number of blue Gapers out of his mouth, which will have very little health but might overcome you with the size of the group.
He'll sink into the ground and move, spawning blue Boils that fire shots in the players direction.
As a note, they are invincible when they first spawn.
Spawns blue flies that will fly in the player's direction while rotating.
Can fire bullets in various patterns with different colorations that the player will have to avoid.
He will also sink into the ground periodically, sometimes moving in this state, to be invulnerable to the player's attacks. He will also periodically spawn blue flies, blue Gapers, and blue Boils that you'll have to deal with as well. Once that form is defeated, he'll turn into the form pictured above which has a very high health pool, damage scaling, and very bullet hell-esque attacks, which all will be listed below. The fight starts off with him acting as if you were fighting ?, he'll start the fight crying on the ground, stand up after being damaged for a while, and then start flying after that. This makes it so that the fight will be very difficult if you don't have a strong run already, as he will seem to have a very high health pool. The Hush is a very special boss because it, along with the other final boss introduced in the DLC, Ultra Greed, have something called damage scaling, which means that all damage dealt to the Hush will be capped so even if you had a very strong run beforehand, you will not be dealing a huge amount of damage to the Hush.