Binding of Isaac: Rebirth Wiki

(except in Rebirth)

After obtaining 3 Mom items from the following list ((in Repentance) 3 items with the mom item tag), Isaac gains a stationary Collectible Mom's Knife iconMom's Knife that trails behind Isaac as he moves, dealing 2x Isaac's tear damage on contact. The knife synergizes like Mom's Knife would.

Activated Collectibles[ | ]

Name ID Icon Quote Description (in Repentance) Quality
Mom's Bottle of Pills 5.100.102
Mom's Bottle of Pills
6 rooms
Reusable pill generator On use, gives Isaac a random pill. 1
Mom's Bra 5.100.39
Mom's Bra
3 rooms
Mass paralysis Petrifies all enemies in the current room for 4 seconds. 1
Mom's Pad 5.100.41
Mom's Pad
2 rooms
Mass fear Inflicts fear to all enemies in the room for 4 seconds. (in Repentance) Spawns a blue fly. 0
(in Afterbirth † and Repentance) Mom's Shovel 5.100.552
Mom's Shovel
4 rooms
Lost but not forgotten Creates a trapdoor that leads to the next floor upon activation. Unlocks Character The Forgotten iconThe Forgotten when used on a mound of dirt that appears in Dark RoomDark Room. 4
(in Repentance) Mom's Box 5.100.439
Mom's Box
4 rooms
What's inside? Increases luck by 1 and doubles the effects of trinkets while held. When used, drops a random trinket on the ground. 2
(in Repentance) Mom's Bracelet 5.100.604
Mom's Bracelet
1 second
Mother's strength Lets Isaac pick up and throw rocks, TNTTNT, PoopPoops, friendly Dips, BombBombs, and other obstacles. 1

Passive Collectibles[ | ]

Name ID Icon Quote Description (in Repentance) Quality
Mom's Coin Purse 5.100.195 Mom's Coin Purse What's all this...? Spawns 4 random pills near Isaac. 1
Mom's Contacts 5.100.110 Mom's Contacts Freeze effect Adds a chance to shoot petrifying tears, which stop enemies in place and prevent them from moving or attacking. (except in Repentance) +0.25 range. (in Repentance) +1.5 range. 3
Mom's Eye 5.100.55 Mom's Eye Eye in the back of your head Gives Isaac a chance to fire tears from the back of his head. 1
Mom's Eyeshadow 5.100.200 Mom's Eyeshadow Charm tears Tears have a chance to charm enemies. 1
Mom's Heels 5.100.30 Mom's Heels Range up (except in Repentance) +5.25 range, +0.5 tear falling speed.
(in Repentance) +2.5 range, enemies that touch Isaac take 12 damage.
Mom's Key 5.100.199 Mom's Key Better chest loot +2 keys Adds 2 keys. ChestChests will drop additional pickups. 3
Mom's Knife 5.100.114 Mom's Knife Stab stab stab Isaac's tears are replaced by a knife that pierces enemies, can travel through obstacles, and can hurt enemies while Isaac is holding it. Holding down the fire button before firing increases its range and power. 4
Mom's Lipstick 5.100.31 Mom's Lipstick Range up (except in Repentance)+5.25 range, +0.5 tear falling speed.
(in Repentance) +3.75 range. Spawns a Red HeartHeart on pickup.
Mom's Perfume 5.100.228 Mom's Perfume Fear shot + tears up Adds a chance to shoot fear tears. (except in Repentance) Decreases tear delay by 1. (in Repentance) +0.5 fire rate. 2
Mom's Purse 5.100.139 Mom's Purse More trinket room Allows Isaac to hold one additional trinket. (in Repentance) Drops a random trinket. 2
Mom's Underwear 5.100.29 Mom's Underwear Range up (except in Repentance) +5.25 range, +0.5 tear falling speed.
(in Repentance) +2.5 range. Spawns 3-6 Blue Flies on pickup.
Mom's Wig 5.100.217 Mom's Wig You feel itchy... Adds a chance to spawn Blue Spiders when firing tears. Restores 1 Red HeartRed Heart. 2
Mom's Pearls 5.100.355 Mom's Pearls Range + luck up (except in Repentance) +1.25 range, +0.5 tear falling speed, +1 luck.
(in Repentance) +2.5 range, +1 luck. Grants one Soul HeartSoul Heart.
(in Afterbirth † and Repentance) Mom's Razor 5.100.508 Mom's Razor It's sharp! Spawns an orbiting razor that deals contact damage and inflicts bleeding on enemies, causing them to slowly take damage over time. 2
(in Repentance) Mom's Ring 5.100.732 Mom's Ring DMG up +1 Damage. Drops a random Rune or Soul Stone upon pickup. 3

Notes[ | ]

  • This is a reference to the horror film Psycho.
  • (except in Repentance)Collectible Mom's Box iconMom's Box does not count towards this transformation even though it has the name "Mom" in it.

Unlockable Achievements[ | ]

Gallery[ | ]

Trivia[ | ]

  • The Yes Mother? transformation resembles the original Flash costume for Collectible Mom's Knife iconMom's Knife.