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Boss Hush name.png
Boss versus screen image
Table dividing line 1.png

In-game appearance
Table dividing line 2.png

Table dividing line 3.png

Final Boss Chest (First kill only)
Gateway to Sheol Sheol/Cathedral Cathedral (Subsequent kills)
Added in Afterbirth † Entrance to The Void The Void (Subsequent kills)

Blue Womb Defeat Mom's Heart 10 times
Added in Afterbirth

Hush is the boss of ??? ???, and the final boss of Ending 17.

Behavior[edit | edit source]

Hush starts with a fight identical to the ??? fight, having the same attacks and behavior but a noticeably different appearance and half of ???'s health (as well as a 2×2 room). During all three parts of Hush's first phase, he will always shoot multiple bullets in the player's direction at different intervals. After taking enough damage, He will begin to shoot double and triple bullets and homing bullets.

Hush will not begin attacking the player until he takes damage.

Phase 1-1 (First form, 100-67% health)[edit | edit source]

  • Shoots seven or eight rapid-fire lines of bullets in all directions that expand outwards. After taking enough damage, these lines will curve.
  • Shoots eight lines of two bullets in all directions that expand outwards. Each line consists of one normal bullet and one homing bullet. After taking enough damage, these lines will curve.
  • After taking enough damage, Hush will summon Attack Flies, Moters or Pooters that orbit around himself.

Phase 1-2 (First form, 67%-33% health)[edit | edit source]

  • Two Eternal Flies begin to circle around Hush, occasionally blocking tears.
  • Continues to spawn flies.
  • Fires 4 homing bullets in a lop-sided X pattern.
  • Fires 8 homing bullets in all directions.

Phase 1-3 (First form, <33% health)[edit | edit source]

  • Spawns flies more aggressively.
  • Hush will teleport at a distance in front of the player, either in the last direction he was moving or directly onto the player if he didn't move at all. Hush will not teleport if he is slowed (e.g. with a Stop Watch Stop Watch).
  • Uses the two curved line shots from the first sub-phase.

After Hush's first form is defeated, it reveals its large true form at the top of the room, taking the form of its splash screen portrait. Its health pool is very large, and its basic attacks consist of barrages of shots following various patterns akin to those in the "bullet hell" genre of shoot 'em ups. Combined with some enemy summons in between, the attacks can be particularly hard to evade. Every time Isaac deals roughly 20% of its health, it will sink into the ground, becoming stationary, non-attacking, and invulnerable. Once most of the projectiles onscreen have dissipated, it will pop back up, using more varied attacks than before.

Phase 2-1 (True form, 100-80% health)[edit | edit source]

  • Hush fires barrages of Yellow, Blue, and Green glowing bullets in certain patterns, combining 1-3 different patterns of shots. These patterns include:
    • Rings of tears that alternate between rotating clockwise and counterclockwise as they move outwards.
    • U-shaped salvos aimed at Isaac.
    • Lines of shots aimed at Isaac that either gain (Yellow), lose (Blue), or maintain (Green) momentum as they travel (these lines have spaces between them every 4-5 shots).
    • 2-4 repeating volleys of 4 shots, with equal spacing between each volley (the angle these volleys are shot out at rotates as the attack continues).

The same pattern can be used multiple times in each barrage, and shot patterns become less dense if multiple patterns are used in the same barrage.

Phase 2-2 (True form, 80-60% health)[edit | edit source]

Hush will move to the center of the room before resuming its attacks. It also gains an attack and two more shot patterns for its bullet barrage:

  • Hush's bullet barrage can include two new patterns:
    • A very dense ring of shots, with a gap Isaac can go through aimed somewhere in his general direction.
    • 3-5 spirals of shots, with even spacing between each spiral (shots from these spirals initially lose momentum, but after a few seconds they go back to their normal speed and rotate counterclockwise as they move out).
  • Hush spawns a cluster of Hush Flies that either orbit Hush, launch towards Isaac's position at the moment of spawning and fly off-screen, or actively chase Isaac. These flies have invincibility for a short time after being spawned, and alternate between forming the shapes of a circle, triangle, square, pentagon, or 5 or 6-pointed star.

Phase 2-3 (True form, 60-40% health)[edit | edit source]

Hush keeps its attacks from previous phases, and gains two more attacks and an extra shot pattern for its bullet barrage:

  • Hush’s bullet barrage can now also include a very wide spread of shots that closes in on where Isaac was standing when fired.
  • Hush spawns a horde of Blue Gapers, which have an appearance similar to Hush's first form, before sinking into the ground to relocate. While relocating, Hush might summon Blue Boils that fire either a single bullet or three bullets in a spread at Isaac that can travel across the room. Hush is invulnerable in this state.
  • Hush fires three rows of wavy Continuum Continuum shots in one of the cardinal directions, which warp over to the other side of the screen and increase in speed the longer they travel. Hush will perform this attack 2-5 times before using a different one. These shots move in a set pattern, so standing still in a safe spot will allow Isaac to avoid an entire barrage.

Phase 2-4 (True form, 40-20% health)[edit | edit source]

Hush keeps its attacks from previous phases, gains an extra attack, and modifies its attack where it fires barrages of bullets:

  • Hush sinks into the ground while firing its barrages, moving in a random direction or chasing Isaac as it fires, and spawning Blue Boils as it moves. Only shot patterns from phase 2-1 can be used; the patterns added in phase 2-2 and 2-3 are lost. Hush is invulnerable in this state.
  • Hush creates three large Red projectiles that move outward and split rapidly into numerous smaller projectiles. Hush can start other attacks before the projectiles from this attack fully dissipate.

Phase 2-5 (True form, <20% health)[edit | edit source]

Hush keeps most of its attacks from previous phases but loses its ability to spawn Hush Flies. It gains one more attack in this phase and will have a greatly reduced attack delay when at <1% health:

  • Hush fires two laser beams upward from its eyes, which will create beams on the ground that move toward Isaac and leave slippery Blue Creep in their wake. The speed at which the beams move is based on Isaac's speed stat, and are always possible to outmaneuver. While firing these lasers, Hush will also release five wavy, slow-moving lines of bullets in all directions.

When defeated, Hush will scream and disappear in a flash of light. The ground where it once was will become scorched in a shape resembling a distressed face.

Gallery[edit | edit source]

Unlockable Achievements[edit | edit source]

Damage Scaling[edit | edit source]

Damage scaling is an unclear mechanic introduced by Nicalis in The Binding of Isaac: Afterbirth to provide a more challenging experience to the players, enabling some enemies to retaliate against high damage attacks by deploying an "armor" of a sort to greatly reduce the amount of damage taken. Further details and an in-depth explanation may be found here.

Strategies[edit | edit source]

  • Having a Stop Watch Stop Watch for this fight is very valuable, as the slow effect triggered upon taking a hit will aid the player's ability to dodge the complex tear patterns and deal with the massive spawns of enemies, which can happen in quick succession.
  • Using the 'I'm Drowsy' pill will have the same effect as Stop Watch.
  • Any items that can fend off projectiles will be highly useful for the fight. Orbital familiars, Circle of Protection Circle of Protection, The Soul The Soul, Trinity Shield Trinity Shield, Night Light Night Light, Dry Baby Dry Baby, Farting Baby Farting Baby, Host Hat Host Hat, and Infamy Infamy may greatly help mitigate damage. Particularly, having three orbitals at once will block a large number of Hush's shots.
    • Lost Contact Lost Contact may be beneficial or detrimental depending on the player's tears stat; in combination with a high tears stat, many Lost Contact tears may still reach Hush even after blocking Hush's shots, but if the player has a low tears stat, they may find all their Lost Contact tears fired being destroyed during Hush's bullet hell attacks before they can reach their target.
      • When the player has piercing tears, however, Lost Contact can cause dodging most attacks to become trivial regardless of the player's tears stat, as the player's tears will destroy any enemy projectiles they come into contact with while remaining themselves intact.
  • Piercing tears (or any tear-replacing item that grants a piercing attack) are also useful for killing the enemies Hush spawns, preventing Isaac from becoming overwhelmed and allowing him to dodge its other attacks more easily.
  • Marked Marked and homing tears may help to land more tears while trying to avoid enemy projectiles, either by automatically firing at or targeting Hush even if the shot is a little off.
  • A safe way to beat Hush is through the usage of Gnawed Leaf Gnawed Leaf in combination with a passively damaging item such as Daddy Longlegs Daddy Longlegs or The Pinking Shears The Pinking Shears, though it will take a while. Using The Ludovico Technique The Ludovico Technique in combination with Gnawed Leaf can also be effective since Hush doesn't move a lot.
  • Hush is affected by the Chaos Card. It's advised to save the card for phase 2, which has far more health. Alternatively, throwing it upwards during its first phase can kill both phases if timed correctly.
  • Hiding in a corner may assist the player in dodging some of Hush's bullet hell attacks by allowing time for the associated projectiles to spread out.
  • Although Samson's Chains Samson's Chains can block shots, the wavy path of Hush's continuum shots may allow them to hurt the player even when they are directly behind the ball from Samson's Chains.
  • Serpent's Kiss Serpent's Kiss, Maw of the Void Maw of the Void, Athame Athame, or The Virus The Virus (in combination with defensive items like Algiz Algiz or Book of Shadows Book of Shadows) will make killing Hush's spawns occasionally drop black hearts, effectively increasing the player's health pool past the normal restriction of twelve hearts.
  • When playing as Keeper, Head of the Keeper Head of the Keeper and Wooden Nickel Wooden Nickel can be used to drop spare coins on the floor that can be taken after being hit.
    • Wooden Nickel can be combined with Car Battery Car Battery for extra coins, The Battery The Battery for one extra charge, 9 Volt 9 Volt for continuous recharges every 15 seconds, or with Habit Habit for a free recharge if Keeper gets hit.
  • Ventricle Razor Ventricle Razor allows the player to repeatedly enter and exit the Boss Room, granting multiple uses of items like the Wooden Nickel to help as the Keeper, provided a source of charges is available. Multiple pickups may also be dropped for use during the fight.
    • Holy Mantle Holy Mantle can also be reset in this way, giving the player infinite attempts to kill Hush without taking any damage. This is especially useful as The Lost.
  • A Card Against Humanity A Card Against Humanity works in the Hush room. This can be used to generate hearts and coins. Having Sack Head Sack Head or Petrified Poop Petrified Poop makes this strategy even more effective.
  • Regardless of Isaac's item combination, taking occasional breaks between firing at Hush is effective, as, during this period, Hush's damage resistance will decrease since he isn't taking any damage.
  • Added in Afterbirth † It is not recommended to have Added in Afterbirth †Broken Modem Broken Modem, as it will stop Hush's tears and close some escape routes, making it harder to dodge in some cases.
  • Added in Afterbirth † If the player can get Mysterious Liquid Mysterious Liquid and Added in Afterbirth †Trisagion Trisagion (and possible a high tear rate + slow-moving tears), the player can kill Hush extremely quickly due to the multiple tear creeps underneath him, which doesn't seem to trigger his resistances.
  • Added in Afterbirth † The Forgotten can swap characters into The Soul. By hiding behind the skeletal body, which attracts shots towards itself a short distance from itself, The Soul can avoid Hush's attacks.

Notes[edit | edit source]

  • Defeating Hush for the first time will spawn a Final Boss Chest. Moving into the chest will unlock ending 17 and end the run.
  • Using the Emergency Contact on Hush's second form seems to lower its damage resistance by 50% for approximately 5 seconds.
  • Though it is possible to fight Hush in challenges, doing so is not recommended. Even though it offers the chance for two or more new items, the fight is very difficult, and the player may lose more than what they have gained.
  • If you kill Hush for the first time and unlock The Void, you can exit the room and come back in, and the entrance to The Void will appear without you having to fight Hush again on a new run.

Trivia[edit | edit source]

  • In its first form (the replica of the ??? fight), "Ascension" plays while in its second form, the name of the boss theme is "Morituros".
    • Morituros in Latin is the accusative masculine plural for 'about to die', which roughly translates to "those who will die".
  • Hush is one of two bosses that have damage resistance, the other being Ultra Greed.
  • Hush is one of only two bosses in the game with a Boss Room scaled in a 2x2 fashion, the other being Delirium.
  • There is an unused file in the game named "boss_hush_skinless" which appears to be an unfinished spritesheet for the unreleased third form of Hush. It resembles a red, fleshy version of the head of The Forsaken. This was confirmed by Edmund to be "a red herring for dataminers."
  • Hush has the second-highest health of any boss in the game, with a total of 7666 health; only Delirium has more health. However, Hush has damage resistance while Delirium does not.
  • Hush shares his name with a level from Edmund's previous game Super Meat Boy.
  • Hush's boss room gradually becomes darker as Hush loses health.
    • You can also see shadows of what seems to be veins in the ceiling.
  • According to Edmund on Twitter, Hush represents Isaac's imminent death slowly approaching towards him, which is the reason why Hush and ??? are the same thing, since ??? represents Isaac suffocating in the chest.
  • According to Edmund on Twitter, Hush is a giant ??? pushing from the other side.

Bugs[edit | edit source]

Bug Bug! Added in Afterbirth † If Delirious is used in phase 2 of the Hush fight and Delirium is killed, The Calm (music usually played after defeating a boss) will replace Morituros.
Bug Bug! Having the No Return seed enabled when going to Hush will result in no doors being available, softlocking the run.

Mom's Heart Unlocks Mom's Heart Unlocks Mom's Heart Unlocks
A NooseA QuarterA Fetus in a JarA Halo???Everything Is Terrible!!!It Lives!Wire Coat HangerIpecacExperimental TreatmentRubber CementDarkness FallsSolar SystemSuicide KingDemo ManLost BabyCute BabyCrow BabyShadow BabyGlass BabyWrapped BabyBegotten BabyDead Baby-0- BabyGlitch BabyFighting Baby Goat Head BabyBlue WombSuper Greed BabyBlue Bomber Pokey MansSmelterBurning BasementMarrow
Bosses Boss Monstro.png
Chapter 1
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
GeminiStevenBlighted OvumDingleThe Duke of FliesFamineFistulaGurglingsThe HauntLarry Jr.MonstroPinWidowThe FallenThe Headless Horseman
DangleLittle HornRag ManTurdlings
Chapter 2
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
ChubC.H.A.D.Carrion QueenDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusThe WretchedThe FallenThe Headless Horseman
The ForsakenThe FrailThe Stain
Big HornRag Mega
Chapter 3
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Sisters Vis
Chapter 4
Stage The Womb icon.pngStage Utero icon.pngStage Scarred Womb icon.png
BlastocystThe BloatConquestDaddy Long LegsTriachnidDeathLokiiMama GurdyMr. FredScolexTeratomaThe FallenThe Headless HorsemanMom's HeartIt Lives
Sisters VisThe Matriarch
Blue Womb
Chapter 5
Stage Sheol icon.pngStage Cathedral icon.png
Chapter 6
Stage Dark Room icon.pngStage The Chest icon.png
???The LambMega Satan
The Void
Stage The Void icon.png
Greed Mode
Ultra Greed
Ultra Greed
Ultra Greedier
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