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Mom

From Binding of Isaac: Rebirth Wiki
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Boss Mom name.png
Boss versus screen image
 
 
Table dividing line 1.png
 
In-game appearance
Table dividing line 2.png
 
Boss
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
If an I AM ERROR room is used on Depths II
Stage The Void icon.png
Table dividing line 3.png
 
The Polaroid The PolaroidThe Polaroid Icon.pngIf the character has half a red heart or no red hearts after taking damage, it triggers the Book Of Shadows effect, creating a shield that nullifies all types of damage for 5 seconds. Also allows entrance into The Chest.The Negative The NegativeThe Negative Icon.pngIf the character has half a red heart or no red hearts after taking damage, it triggers The Necronomicon effect, damaging all enemies in the room. Also allows entrance into the Dark Room.
If both are not unlocked, then
Disambig.png This article is about the boss. For the transformation, see Yes Mother (Transformation).

Isaac's Mom is the boss found in the second floor of the third chapter and is the final boss for the game's prologue. She is a delusional woman who believes that the hallucination she hears telling her to murder her son is the voice of God.

Added in Afterbirth † In Afterbirth+, defeating Mom for the first time causes mods to no longer disable achievements.

Behavior[edit | edit source]

Mom's fight takes place in the entirety of the room and always begins with Mom stomping in the center of the room. Four Boss Room doors will emerge on all four sides of the room, and Mom can attack from any of these doors. She can stomp on Isaac, which is telegraphed by a growing shadow and her screaming. All of her attacks will deal a full heart of damage. She can only be hurt by hitting her directly when she exposes her foot, eye, flesh, or hand.

Standing too close to the doors will result in Mom striking with her hand. If the player isn't in reach and she isn't using her foot stomp attack, a piece of flesh will bulge from the doors and spawn various enemies. Occasionally, she may stick her eye out of the door, which is harmless and vulnerable to being attacked by Isaac.

Mom's stomp attack can damage nearby enemies and destroy obstacles, but the foot itself does no contact damage.

Enemies spawned by Mom are:

Once Mom is defeated, all enemies spawned by Mom will die as well, with the exception of Globins.

Champion Variants[edit | edit source]

  • Blue: This variant summons monsters more often and only summons various types of enemies added in the Wrath of The Lamb expansion for the original game, including Spiders, Big Spiders, Trites, Buttlickers and Keepers.
  • Red: This variant does not summon monsters at all, and instead constantly uses her foot stomp. Her eyes can shoot three blood shots at the player when they emerge and she uses her hand much more often.

Gallery[edit | edit source]

Unlockable Achievements[edit | edit source]

  • The Womb
    The Womb - Defeat Mom for the 1st time.

Notes[edit | edit source]

  • Defeating Mom for the first time will change the current savefile's image.
  • Using The Bible The BibleThe Bible Icon.png6 roomsUpon activation, Isaac gains flight, allowing him to pass over all obstacles in the current room. Instantly kills Mom, Mom's Heart, and It Lives when activated, but will kill Isaac when activated while fighting Satan. item during the Mom boss fight will kill her instantly and unlock The Halo The HaloThe Halo Icon.pngGrants one Heart Container, +0.3 Damage, +0.2 Tears, +0.25 Range, +0.3 Speed, and +0.5 Tear Height..
  • Using The High Priestess card during the fight with Mom will result in Isaac being stomped instead of the enemy with the highest health.
    • Though, if done correctly, one could possibly kill Mom in one hit by using the card while next to Mom's leg.
  • Mom's stomp attack counts as a bomb; this means Isaac can be immune to it with Pyromaniac PyromaniacPyromaniac Icon.pngIsaac heals 1 heart instead of taking damage from an explosive source. Adds 5 bombs. or Added in  AfterbirthHost Hat Host HatHost Hat Icon.pngA host familiar that sits on Isaac's head and has a random chance to block enemy shots and retaliate with 3 tears. Grants immunity to explosions..
    • With Pyromaniac, Isaac can be healed when stomped.
    • Red Mom is nearly impossible to lose against with Pyromaniac or Host Hat.
  • Mom cannot damage herself with her stomp attack.
  • Midas' Touch Midas' TouchMidas' Touch Icon.pngEnemies that touch you are stunned and turn gold. Any enemy killed while in this state will drop a coin. causes Mom's foot to be turned into gold before it lands, giving the player ample time to move out of the way and place bombs or otherwise.
  • After Mom's foot touches the ground, it is safe to touch no matter what; as opposed to dealing contact damage, it is purely explosive.
  • The Polaroid The PolaroidThe Polaroid Icon.pngIf the character has half a red heart or no red hearts after taking damage, it triggers the Book Of Shadows effect, creating a shield that nullifies all types of damage for 5 seconds. Also allows entrance into The Chest. is always to the left and The Negative The NegativeThe Negative Icon.pngIf the character has half a red heart or no red hearts after taking damage, it triggers The Necronomicon effect, damaging all enemies in the room. Also allows entrance into the Dark Room. is always to the right, in case Curse Of The Blind is active.

Trivia[edit | edit source]

  • Mom is voiced by Patty Allen-Scott.
  • Mom appeared in the original The Binding of Isaac.
    • In the original, Mom's voice was provided by Carla Kihlstedt
    • Mom's Leg originally dealt a full heart of damage.
    • Unlike in Rebirth, Mom would shout "Isaac!" whenever she exposed her eye.
  • Mom is one of the two bosses in the game to have a unique design for her name in the Versus screen. The other one is Added in  Afterbirth Brownie.
  • Mom is the only final boss that has champion variants.
  • How using the Bible kills Mom instantly is a reference on how a bible hits her head in the epilogue of the game, knocking her out or killing her.
  • During the versus screen, "Isaac!" from Mom can be heard, despite the battle not starting yet. She is the only boss whose voice can be heard during the versus screen.
  • If Isaac gets hurt by Mom, her laugh can be heard.
  • In The Binding of Isaac: Four Souls rendition of Credit Card, the name "Magdalene O. Moriah" can be seen carved in the credit card. Edmund has confirmed that this is indeed Mom's full name.
    • The last name "Moriah" is likely a reference to the biblical location of the same name. In the bible, it is said that Moriah is where Abraham almost sacrificed his son before God sent an angel to stop his hand.
  • The skirt she wears on her ingame sprite is normally impossible to see in regular play as her leg extends past the screen. Using the Added in Afterbirth †Dataminer DataminerDataminer Icon.png4 roomsDisplaces enemy sprites for the current room, randomly increases one stat and decreases another. can make the skirt visible.
  • In the original, Mom's Foot used to deal contact damage.


Bosses Boss Monstro.png
Chapter 1
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
Blighted OvumDingleThe Duke of FliesFamineFistulaGeminiGurglingsThe HauntLarry Jr.MonstroPinStevenWidowThe FallenThe Headless Horseman
Added in  Afterbirth DangleLittle HornRag ManTurdlings
Chapter 2
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
Carrion QueenC.H.A.D.ChubDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusThe WretchedThe FallenThe Headless Horseman
Added in  Afterbirth The ForsakenThe FrailThe Stain
Added in Afterbirth † Big HornRag Mega
Chapter 3
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
The AdversaryThe BloatThe CageThe GateGishLokiMask Of InfamyMonstro IIWarThe FallenThe Headless HorsemanMom
Added in  Afterbirth Brownie
Added in Afterbirth † Sisters Vis
Chapter 4
Stage The Womb icon.pngStage Utero icon.pngStage Scarred Womb icon.png
BlastocystThe BloatConquestDaddy Long LegsDeathLokiiMama GurdyMr. FredScolexTeratomaTriachnidThe FallenThe Headless HorsemanMom's HeartIt Lives
Added in Afterbirth † Sisters VisThe Matriarch
Added in  Afterbirth Blue Womb
???
Added in  Afterbirth Hush
Chapter 5
Stage Sheol icon.pngStage Cathedral icon.png
SatanIsaac
Chapter 6
Stage Dark Room icon.pngStage The Chest icon.png
???The LambMega Satan
Added in Afterbirth † The Void
Stage The Void icon.png
Added in Afterbirth † Delirium
Added in  Afterbirth Greed Mode
Ultra Greed
Added in  Afterbirth Ultra Greed
Added in Afterbirth † Ultra Greedier
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
Achievements Achievements Attributes Attributes Bosses Bosses TarotCard.png Cards and Runes Challenges Challenges Chapters Chapters
Characters Characters MainPageBabies.png Co-op Items Items Item Pools Item Pools Monsters Monsters Objects Objects
Pickups Pickups Pills Pills Rooms Rooms Seeds Seeds Transformations Transformations Trinkets Trinkets