Binding of Isaac: Rebirth Wiki
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This article is about the floor. For the object, see Chests. For other uses, see Chest (Disambiguation).

The Chest is one of five final levels in The Binding of Isaac, alongside the Dark RoomDark Room, (in Afterbirth † and Repentance)The VoidThe Void, the (in Repentance)CorpseCorpse, and (in Repentance)HomeHome.

The Chest can be accessed with three methods: Touching the chest dropped by Boss Isaac ingameIsaac while having Collectible The Polaroid iconThe Polaroid (always dropped by Boss Mom ingameMom after beating Isaac five times) equipped, or, while in the CathedralCathedral, by using Telepills or another item that acts like Telepills, and being sent to the I AM ERRORI AM ERROR room, or finding a Black MarketBlack Market on the Cathedral and going into the beam of light.

Like the Cathedral before it, the Chest consists of only one floor. In the Chest, it is not possible to bomb doors open to skip rooms. The Chest's rooms are usually devoid of Rocks and other obstacles and are mainly filled with bosses and mini-bosses. The boss of the floor is always Boss ??? ingame???.

The first room in the Chest will automatically contain 4 golden chests. These special chests always contain treasure room items. Rarely, these chests can also be Mega Chests or Eternal Chests. Additionally, all brown and golden chests spawned in the Chest will always contain Treasure Room Items. This means that a lot of different items can be found in the Chest when clearing rooms with items or effects that raise the chance of spawning chests. This can be useful when trying to complete the collection page. (except in Repentance) Destroying Slot MachineSlot Machines, Fortune Telling MachineFortune Telling Machines, and all types of BeggarBeggars with the exception of the Shell GameShell Game will also spawn items.

After completing the Chest or the Dark Room for the first time, the first room of the Chest will always contain a large golden door, which can be unlocked with either the Key Pieces (combination of Collectible Key Piece 1 iconKey Piece 1 and Collectible Key Piece 2 iconKey Piece 2), Collectible Dad's Key iconDad's Key, (except in Rebirth)Get out of Jail Free CardGet out of Jail Free Card, or (in Afterbirth † and Repentance)Collectible Mr. ME! iconMr. ME!, allowing access to Mega Satan Head ingameMega Satan.

Monsters[ | ]

Entity ID Description
Imp
Imp
259.0 Slowly drifts towards Isaac, frequently firing 5 blood shots in quick succession towards him. Tries to avoid Isaac's shots and occasionally teleports and reappears elsewhere.
Bony
Bony
227.0 Wanders around the room and throws a bone at Isaac when he is in sight.
Death's Head
Death's Head
212.0 Invulnerable enemy that moves diagonally around the room, dealing contact damage. Dies when the room is cleared.
MemBrain
MemBrain
57.0 Slowly moves around the room, occasionally hopping and firing 8 large blood shots in all directions. Splits into 2 BrainBrains upon death.
Dip
Dip
217.0 Slowly dashes in random directions, dealing contact damage.
Dinga
Dinga
223.0 Slowly moves around the room, occasionally hopping to spawn DipDips or fire 8 Brown shots in all directions. Splits 2 SquirtSquirts upon death.
Pale Fatty
Pale Fatty
208.1 Slowly walks towards Isaac. Occasionally farts and shoots 6 blood shots in all directions. Has a chance to turn into a Blubber upon death.
Attack Fly
Attack Fly
18.0 Red fly that follows Isaac and deals contact damage.
Frowning Gaper
Frowning Gaper
10.0 Walks towards Isaac, dealing contact damage. They start out with their eyes closed, but when they gain line of sight with Isaac, their eyes open and they permanently move faster. Usually turns into a PacerPacer or with a small chance a GusherGusher upon death.
Nulls
Nulls
252.0 Walks towards Isaac, dealing contact damage. Upon getting near Isaac, it will open its eyes, though its speed doesn't change. Fades into and out of visibility.
Gurgling
Gurgling
237.0 Charges towards Isaac when he lines up with them, leaving a trail of Red Creep and shooting 6 blood shots.
Bone Knight
Bone Knight
283.0 Moves erratically around the room, charges toward Isaac when in line of sight, and leaves behind a short-lasting trail of damaging Red Creep. Can only be damaged from behind.
Red Maw
Red Maw
26.1 Floats quickly towards Isaac and releases 4 blood shots in the cardinal directions upon death.
Mom's Hand
Mom's Hand
213.0 Falls from the ceiling. If it lands on Isaac, it deals damage and teleports him back to the spawn room of the floor. Entering a room containing Mom's Hand will warn Isaac with Mom's laugh.
Rotty
Rotty
226.1 Slowly walks towards Isaac, leaving short-lasting Red Creep behind itself. Spawns a BonyBony or two Attack FlyAttack Flies upon death.
Spider
Spider
85.0 Erratically moves around the room. If Isaac gets close to it, it chases him, trying to deal contact damage.
Oob
Oob
224.0 When Isaac lines up with it horizontally, it charges across the room once. When Isaac is not horizontal to it, it spawns Brains.
Wizoob
Wizoob
219.0 Disappears, then appears near Isaac and spits a cluster of spectral tears at him.
Lil' Haunt
Lil' Haunt
260.0 Floats toward Isaac and occasionally fires a blood shot at him, predicting his movements.
Slide
Slide
44.1 Quickly slides towards Isaac when he gets in its line of sight, then moves slowly back to its original position. Cannot be destroyed.
Dark Ball
Dark Ball
(except in Rebirth)
404.1 Floats towards Isaac, doing contact damage.
Blue Conjoined Fatty
Blue Conjoined Fatty
(except in Rebirth)
257.1 Slowly walks towards Isaac and occasionally farts out a homing Ipecac shot at Isaac.
Cyclopia
Cyclopia
(except in Rebirth)
284.0 Walks towards Isaac, dealing contact damage and leaving behind a short-lasting trail of damaging Red Creep. Occasionally shoots a blood shot towards Isaac.
Rag Man's Ragling
Rag Man's Ragling
(except in Rebirth)
246.1 Quickly leaps towards Isaac and deals contact damage. Randomly shoots two purple shots that orbit around it.
Ministro
Ministro
(in Afterbirth † and Repentance)
305.0 Hops around randomly and hop towards Isaac when he gets close, occasionally spitting out a cluster of disorganized shots.
Wrinkly Baby
Wrinkly Baby
(in Repentance)
38.3 Dashes towards Isaac at high speed and fires three blood shots in his direction once stopped.
Grilled Clotty
Grilled Clotty
(in Repentance)
15.3 Quickly and randomly wanders around the room, firing four flame shots in the cardinal directions at a slight angle.
Holy Mulligan
Holy Mulligan
(in Repentance)
22.2 Wanders around the room, avoiding Isaac and spawning Angelic Baby (small)Angelic Baby (small) if he gets close. Spawns 1-2 EmbryoEmbryos upon death.
Needle
Needle
(in Repentance)
881.0 Pops out of the ground and lunges towards Isaac, dealing contact damage.

Degraded Bosses:

Name ID Notes
The Adversary
The Adversary
268.0
Baby Plum
Baby Plum
(in Repentance)
908.0
Big Horn
Big Horn
(in Afterbirth † and Repentance)
411.0
Blastocyst
Blastocyst
74.0 Medium- and large-form only
Blighted Ovum
Blighted Ovum
79.2
The Bloat
The Bloat
68.1
Brownie
Brownie
(except in Rebirth)
402.0
The Cage
The Cage
265.0
Carrion Queen
Carrion Queen
28.2
C.H.A.D.
C.H.A.D.
28.1
Chub
Chub
28.0
Conquest
Conquest
65.1
Daddy Long Legs
Daddy Long Legs
101.0
Dangle
Dangle
(except in Rebirth)
261.1
Dark One
Dark One
267.0
Death
Death
66.0
Dingle
Dingle
261.0
The Duke of Flies
The Duke of Flies
67.0
Envy
Envy
51.0
The Fallen
The Fallen
81.0
Famine
Famine
63.0
Fistula
Fistula
71.0 Medium- and large-form only
The Forsaken
The Forsaken
(except in Rebirth)
403.0
The Gate
The Gate
263.0
Gemini
Gemini
79.0
Gluttony
Gluttony
49.0
Greed
Greed
50.0
Gurdy
Gurdy
36.0
Gurdy Jr.
Gurdy Jr.
99.0
Gurglings
Gurglings
237.1
The Haunt
The Haunt
260.0
Headless Horseman
Headless Horseman
82.0
The Hollow
The Hollow
19.1
The Husk
The Husk
67.1
Larry Jr.
Larry Jr.
19.0
Little Horn
Little Horn
(except in Rebirth)
404.0
Loki
Loki
69.0
Lokii
Lokii
69.1
Lust
Lust
47.0
The Matriarch
The Matriarch
(in Afterbirth † and Repentance)
413.0
Mega Fatty
Mega Fatty
264.0
Mega Maw
Mega Maw
262.0
Monstro
Monstro
20.0
Monstro II
Monstro II
43.0
Peep
Peep
68.0
Pestilence
Pestilence
64.0
The Pile
The Pile
(in Repentance)
269.1
Pin
Pin
62.0
Polycephalus
Polycephalus
269.0
Pride
Pride
52.0
Rag Man
Rag Man
(except in Rebirth)
405.0
Rag Mega
Rag Mega
(in Afterbirth † and Repentance)
409.0
Reap Creep
Reap Creep
(in Repentance)
900.0
Sisters Vis
Sisters Vis
(in Afterbirth † and Repentance)
410.0
Sloth
Sloth
46.0
The Stain
The Stain
(except in Rebirth)
401.0
Super Envy
Super Envy
51.1
Super Gluttony
Super Gluttony
49.1
Super Greed
Super Greed
50.1
Super Lust
Super Lust
47.1
Super Pride
Super Pride
52.1
Super Sloth
Super Sloth
46.1
Super Wrath
Super Wrath
48.1
Teratoma
Teratoma
71.1
Turdlings
Turdlings
(except in Rebirth)
237.2
War
War
65.0
Widow
Widow
100.0
Wrath
Wrath
48.0
The Wretched
The Wretched
100.1

Bosses[ | ]

Boss Blue Baby
Boss Mega Satan
??? Mega Satan

Notes[ | ]

  • If Isaac gets Collectible Key Piece 1 iconKey Piece 1 and Collectible Key Piece 2 iconKey Piece 2, the key will open the golden gate to fight Mega Satan, but if Isaac uses Collectible Forget Me Now iconForget Me Now, the floor will reset and Isaac won't get both Key Pieces back, making it so that the golden gate won't open again.
  • (in Afterbirth and Afterbirth †) It is possible to create trapdoors thanks to Reward Plate (found for example in a Secret RoomSecret Room). Upon entering them, the floor is restarted. If the large golden door was opened before restarting, it will be closed afterward.
    • This may result in a softlock on a Daily Run to Mega Satan, if no other way of opening the door is found.
  • (except in Rebirth) The I AM ERRORI AM ERROR room cannot be reached by any method in the Chest and the Dark RoomDark Room.
    • (in Repentance) The I AM ERRORI AM ERROR room can be reached by leaving a Crawl SpaceCrawl Space through an unintended direction. The room will always contain a portal leading to The VoidThe Void.
  • (in Repentance) If a Red Chest is placed in the starting room, it will contain a Devil Deal, similar to the Dark RoomDark Room.

Unlockable Achievements[ | ]

  • Dead Boy
    Dead Boy - Complete Chapter 6 without taking damage.

Trivia[ | ]

  • The Chest and its boss, ???, are based on the in-game backstory of Isaac locking himself in his toy chest and asphyxiating to death.
  • The sprite appearance of ??? is a reference to Edmund McMillen's Dead Baby games, which are often referenced throughout The Binding Of Isaac.
  • The texture of the floor may have a small chance of showing two small glowing dots that look like eyes.
  • The shadow cast on the floor most likely resembles Isaac's head while opening the chest.
  • (in Afterbirth † and Repentance) In The VoidThe Void, during Boss Delirium ingameDelirium's death animation, its boss room switches between different environments, and it always ends with a Chest backdrop.

Music[ | ]

  • The music for the Chest is titled Sketches of Pain.[1]

References[ | ]


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