Binding of Isaac: Rebirth Wiki
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Binding of Isaac: Rebirth Wiki

The Cathedral is one of two unlockable floors following Womb Womb/Utero Utero/Added in Afterbirth Scarred Womb Scarred Womb, the other being Sheol Sheol. After defeating Mom's Heart, an Angel Room Angel Room may spawn containing a beam of light leading upwards to the Cathedral. Unlocking and defeating It Lives will always spawn a beam of light leading to the Cathedral, as well as a trapdoor leading to Sheol.

The Cathedral has only one floor, featuring mostly undead and/or holy enemies, and the boss is always Isaac.

Monsters[]

Entity ID Description
Angelic Baby
Angelic Baby
38.1.0 Slowly floats towards Isaac and fires three spread shots. 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.
Dip
Dip
217.0 Slowly dashes in random directions, dealing contact damage.
Squirt
Squirt
220.0 Dashes towards Isaac and deals contact damage. Spawns 2 Dips upon death.
Dinga
Dinga
223.0 Slowly moves around the room, occasionally hopping to spawn Dips or fire 8 Brown shots in all directions. Splits 2 Squirts upon death.
Clot
Clot
15.1 Randomly wanders around the room, firing 4 tar shots in the ordinal directions.
I.Blob
I.Blob
15.2 Randomly wanders around the room, firing 8 shots in all directions.
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 or Half Sack upon death.
Fat Sack
Fat Sack
209.0 Slowly walks towards Isaac. Occasionally leaps off-screen and attempts to land on Isaac, leaving a puddle of Red Creep and shooting 6 blood shots in all directions where it lands. Has a chance to turn into a Blubber or Half Sack upon death.
Fly
Fly
13.0 Hovers in place. Does not deal contact damage and is harmless but can turn into Pooters if they stay around Poop.
Eternal Fly
Eternal Fly
96.0 Invulnerable fly that circles Corny Poop and various monsters. Deals contact damage. Turns into a vulnerable Attack Fly after the object or monster it circles is destroyed.
Pooter
Pooter
14.0 Slowly drifts toward Isaac, occasionally firing a single blood shot at him. Does not deal contact damage.
Red Boom Fly
Red Boom Fly
25.1 Flies around the room diagonally, dealing contact damage. Creates a ring of 6 blood shots upon death.
Spit
Spit
61.1 Flies slowly towards Isaac, firing an Ipecac shot towards Isaac upon death.
Floating Knight
Floating Knight
254.0 Behaves like the Knight but slower, and can fly over all obstacles.
Gazing Globin
Gazing Globin
24.1 Quickly chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into a pile of goo, which will slide away from Isaac and can be killed. Will regenerate after a short period of time if not killed quickly.
Gurgling
Gurgling
237.0 Charges towards Isaac when he lines up with them, leaving a trail of Red Creep and shooting 6 blood shots.
Hanger
Hanger
90.0 Floats around the room, firing 3 spread blood shots at Isaac. Upon damaging Isaac, Isaac drops 2 coins on the ground but loses 3. Spawns with an Eternal Fly circling around it.
Keeper
Keeper
86.0 Hops around the room, firing 2 blood shots in a V formation at Isaac. Upon damaging Isaac, Isaac drops 2 coins on the ground but loses 3.
Leech
Leech
55.0 Quickly charges towards Isaac when he gets in its line of sight.
Holy Leech
Holy Leech
55.2 Quickly charges towards Isaac when he gets in its line of sight. Explodes upon death. Spawns with an Eternal Fly circling it, which instantly dies when the Holy Leech explodes.
Mr. Maw
Mr. Maw
35.0 Walks towards Isaac and attacks by launching its head towards him. Turns into a Maw or Gusher upon death depending on the killed body segment. Occasionally separates at will.
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.
Splasher
Splasher
238.0 Walks aimlessly around the room, firing Ipecac shots in random directions.
Rotty
Rotty
226.1 Slowly walks towards Isaac, leaving short-lasting Red Creep behind itself. Spawns a Bony or two Attack 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.
Big Spider
Big Spider
94.0 Erratically moves around the room. If Isaac gets close to it, it chases him, trying to deal contact damage. Spawns two Spiders upon death.
Ragling
Ragling
246.0 Quickly leaps towards Isaac and deals contact damage. Randomly shoots two purple shots that orbit around it.
Psy Tumor
Psy Tumor
253.0 Moves around the room diagonally, occasionally firing 6 homing shots in all directions. Fires more often upon getting damaged.
Psychic Horf
Psychic Horf
248.0 Stationary enemy that fires a homing shot at Isaac when he gets in range of them.
Psychic Maw
Psychic Maw
26.2 Slowly floats towards Isaac, firing homing shots at him when he is in their range. Spawns with an Eternal Fly orbiting around it.
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.
Poky
Poky
44.0 Slides around the room aimlessly, damaging Isaac by contact. Disappears when the room is cleared.
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.
Wall Hugger
Wall Hugger
218.0 Moves around the room like Guts, damaging Isaac by contact. Cannot be destroyed.
Stone Grimace
Stone Grimace
42.0 Stationary and invulnerable monster that occasionally fires a blood shot at Isaac. Stops firing when room is cleared.
Constant Stone Shooter
Constant Stone Shooter
202.0 Stationary and invulnerable monster that continuously fires shots in a single direction.
Red Ghost
Red Ghost
Added in Afterbirth
285.0 Disappears, then reappears near Isaac and fires a brimstone laser.
Suction Pitfall
Suction Pitfall
Added in Afterbirth
291.1 Invulnerable and stationary enemy which sucks Isaac towards itself. Isaac falls into it when walked over, taking damage and popping back out after a short delay.
Mr. Red Maw
Mr. Red Maw
Added in Afterbirth †
35.2 Walks towards Isaac and attacks by launching its head towards him. Turns into a Red Maw or Gusher upon death depending on the killed body segment. Occasionally separates at will.
Stoney
Stoney
Added in Afterbirth †
302.0 Chases Isaac and blocks tears, but does not deal contact damage. Temporarily pauses in exhaustion after a certain amount of time. Invulnerable; dies when the room is cleared.
Cross Stone Shooter
Cross Stone Shooter
Added in Afterbirth †
202.10 Stationary and invulnerable monster that continuously fires shots in four directions, alternating between cardinal and ordinal.
Bishop
Bishop
Added in Repentance
805.0 Shields all enemies in the room, preventing them from taking damage. Fires shots in the cardinal directions when it takes damage.
Holy Bony
Holy Bony
Added in Repentance
227.1 Wanders around the room, throwing a bone at Isaac when he is in sight. The thrown bone leaves behind a blue flame that deals contact damage, blocks Isaac’s shots, and despawns after some time.
Candler
Candler
Added in Repentance
833.0 Flies around the room and propels itself by spawning flames.
Bulb
Bulb
Added in Repentance
61.5 Flies in erratic, angled movements toward Isaac if his active item has charges. Drains active item charges instead of dealing damage.
Holy Eye
Holy Eye
Added in Repentance
60.2 Rapidly summons several beams of light around Isaac every few seconds.
Holy Mulligan
Holy Mulligan
Added in Repentance
22.2 Wanders around the room, avoiding Isaac and spawning Small Angelic Babies if he gets close. Spawns 1-2 Embryos upon death.
Polty
Polty
Added in Repentance
816.0 Picks up and throws rocks and props at Isaac.
Triple Grimace
Triple Grimace
Added in Repentance
42.2 Stationary and invulnerable monster that occasionally fires a triple shot at Isaac. Stops firing when room is cleared.

Degraded Bosses:

Name ID Notes
Baby Plum
Baby Plum
Added in Repentance
908.0
The Bloat
The Bloat
68.1
Bumbino
Bumbino
Added in Repentance
916.0
Chub
Chub
28.0
Conquest
Conquest
65.1
Daddy Long Legs
Daddy Long Legs
101.0
Death
Death
66.0
Dingle
Dingle
261.0
Dingle
Dingle
261.0
The Duke of Flies
The Duke of Flies
67.0
Envy
Envy
51.0
Famine
Famine
63.0
Fistula
Fistula
71.0 Small- and large-form only
Gabriel
Gabriel
272.0
Gemini
Gemini
79.0
Gluttony
Gluttony
49.0
Greed
Greed
50.0
Gurdy Jr.
Gurdy Jr.
99.0
The Haunt
The Haunt
260.0
The Headless Horseman
The Headless Horseman
82.0
Loki
Loki
69.0
The Matriarch
The Matriarch
Added in Afterbirth †
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
Pride
Pride
52.0
Rag Man
Rag Man
Added in Afterbirth
405.0
Sloth
Sloth
46.0
Super Envy
Super Envy
51.1
Super Greed
Super Greed
50.1
Super Sloth
Super Sloth
46.1
Super Wrath
Super Wrath
47.1
Uriel
Uriel
271.0
War
War
65.0
Widow
Widow
100.0
Wrath
Wrath
48.0
The Wretched
The Wretched
100.1

Boss[]

Boss Isaac portrait.png
Isaac

Notes[]

  • Added in Afterbirth † Some rooms contain Angel Statues that can be bombed to summon the Angels and acquire key pieces.
  • If a trapdoor appears, it will lead to Chest Chest.

Trivia[]

  • In the original Binding of Isaac, the windows along the walls were much larger and had different patterns resembling Isaac and a crucifix.
  • One of the interpretations of this floor's theme Everlasting Hymn includes the sentence "Harm yourself and God will grant you strength" many consider this translation "Too extreme" or somehow having no parallels with this game's story, however all the original endings (based on the items Isaac collects) end with Isaac finding several objects and using them to harm himself, which indeed does increase his power in-game
  • The theme of Cathedral (Everlasting Hymn), is noticeably shorter than other floor themed soundtracks. The second layer of the theme (for when entering a room with enemies and bosses with a high HP count), wasn't added in the official Ost, with the in-game second track being barely noticeable chants.  Dark Room's theme (Devoid) is also shorter, but actually lacks the second, intense part of the track.

Music[]

The music for the Cathedral is titled Everlasting Hymn.

Binding of Isaac: Rebirth OST


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