The Caves

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Caves.png

The Caves is the second chapter of Rebirth. After each boss in The Caves has been defeated, The Catacombs will be unlocked.

Monsters[edit | edit source]

Monsters Description
Boil
Boil
Stationary enemy that decreases in size when hit, but regenerates to its full size until fully destroyed. Fires multiple short-ranged blood projectiles in random directions when fully swollen.
Gut
Gut
Stationary enemy that decreases in size when hit, but regenerates to its full size until fully destroyed. Fires Ipecac shots in random directions when fully swollen.
Sack
Sack
Stationary enemy that decreases in size when hit, but regenerates to its full size until fully destroyed. Occasionally spawns Spiders when fully swollen.
Blue Boil
Blue Boil
Added in Afterbirth
Stationary enemy that decreases in size when hit, but regenerates to its full size until fully destroyed. Fires 1-3 blood shots towards Isaac when fully swollen.
Walking Gut
Walking Gut
Does not shrink or regenerate. Walks around aimlessly and fires Ipecac shots in random directions.
Bony
Bony
Wanders around the room and throws a bone at Isaac when he is in sight.
Clotty
Clotty
Randomly wanders around the room, firing 4 blood shots in the cardinal directions.
Clot
Clot
Randomly wanders around the room, firing 4 tar shots in the ordinal directions.
I.Blob
I.Blob
Randomly wanders around the room, firing 8 shots in all directions.
Dip
Dip
Slowly dashes in random directions, dealing contact damage.
Corn
Corn
Added in Afterbirth
Quickly dashes in random directions, dealing contact damage.
Squirt
Squirt
Dashes towards the player and deals contact damage. Spawns 2 Dips upon death.
Dank Squirt
Dank Squirt
Added in Afterbirth
Dashes towards the player and deals contact damage. Spawns 2 Clots upon death.
Corn Mine
Corn Mine
Added in Afterbirth
Goes off when destroyed or after some time, then releases a cloud of poisonous gas and fires corny shots in eight directions.
Embryo
Embryo
Aimlessly hops around the room, dealing contact damage.
Fatty
Fatty
Slowly walks towards Isaac. Occasionally farts, which pushes Isaac and adjacent enemies away.
Conjoined Fatty
Conjoined Fatty
Added in Afterbirth
Slowly walks towards Isaac. Occasionally pauses to fart out a line of damaging green creep towards Isaac. Chance to turn into a regular Fatty upon death.
Pale Fatty
Pale Fatty
Slowly walks towards Isaac. Occasionally farts and shoots blood shots in 6 directions. Can turn into a Blubber upon death.
Fat Sack
Fat Sack
Slowly walks towards Isaac. Occasionally leaps off-screen and attempts to land on Isaac, leaving a puddle of creep and shooting blood shots in 6 directions where it lands. Can turn into a Blubber upon death.
Blubber
Blubber
Walks around aimlessly and randomly spews blood around itself. Can turn into a Half Sack when killed.
Half Sack
Half Sack
Wanders around aimlessly and leaves a trail of red creep.
Stoney
Stoney
Added in Afterbirth †
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.
Black Fly
Black Fly
Tiny black fly with neutral AI. Does not hurt Isaac upon touch.
Attack Fly
Attack Fly
Red fly that follows Isaac and deals touch damage.
Ring Fly
Ring Fly
Gathers with any other Ring Flies in the room. These flies orbit around themselves, while following Isaac.
Swarm Fly
Swarm Fly
Added in Afterbirth
Follows Isaac in large groups and deals contact damage.
Dart Fly
Dart Fly
Added in Afterbirth
Flies towards Isaac and attempts to mimic his movements. Deals contact damage.
Moter
Moter
Follows Isaac, similar to Attack Flies. Splits into 2 Attack Flies upon death.
Boom Fly
Boom Fly
Flies around the room diagonally, dealing touch damage and exploding upon death.
Red Boom Fly
Red Boom Fly
Flies around the room diagonally, dealing touch damage and exploding into 6 blood shots upon death.
Full Fly
Full Fly
Flies toward Isaac erratically, dealing touch damage. Splits into 6 directional shots upon death.
Pooter
Pooter
Slow-moving fly that occasionally fires single blood shots at Isaac. Does not deal touch damage.
Super Pooter
Super Pooter
An alternate version of the Pooter that fires 2 shots in a V-formation and does not deal touch damage.
Sucker
Sucker
Flies slowly towards Isaac, exploding into 4 shots in the cardinal directions upon death.
Gurgle
Gurgle
Walks towards Isaac, firing Ipecac shots at him. Can turn into a Splasher upon death.
Blue Gaper
Blue Gaper
Added in Afterbirth
Walks towards Isaac, dealing contact damage.
Greed Gaper
Greed Gaper
Added in Afterbirth
Walks towards Isaac, dealing contact damage.
Skinny
Skinny
Slowly walks towards Isaac, leaving short-lasting red creep behind itself.
Rotty
Rotty
Slowly walks towards Isaac, leaving short-lasting red creep behind itself. Spawns a Bony or two Attack Flies upon death.
Globin
Globin
Chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into a pile of goo, which can be killed. Will regenerate after a short period of time if not killed quickly.
Gazing Globin
Gazing Globin
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.
Grub
Grub
Erratically moves around the room like Larry Jr. and charges at Isaac when he gets within its line of sight. Spawns Maggots, Chargers, or Spitties upon death, one for each of its segments.
Gurglings
Gurglings
Charges towards Isaac when he lines up with them, leaving a trail of creep and shooting 6 blood shots.
Hopper
Hopper
Slowly hops around the room, dealing touch damage. Can turn into a Flaming Hopper by jumping into fire.
Flaming Hopper
Flaming Hopper
Quickly hops around the room, dealing touch damage. Covers a larger distance than the regular Hopper.
Ministro
Ministro
Added in Afterbirth †
Hops towards Isaac, occasionally spitting out a cluster of disorganized shots.
Leaper
Leaper
Hops around the room, dealing touch damage. Occasionally jumps high into the air, dropping down onto Isaac's position while firing 4 blood shots in the cardinal directions.
Psychic Horf
Psychic Horf
Stationary enemy that fires a homing shot at Isaac when he gets in range of them.
Host
Host
Stationary enemy that is normally invulnerable. Raises its head up when Isaac gets close, revealing a fleshy stem that can be damaged. Upon raising its head, it will fire 3 blood shots and lower its head again.
Red Host
Red Host
Stationary enemy that can be damaged even when its head is lowered. Fire 5 spread blood shots when it raises its head.
Mobile Host
Mobile Host
Acts like the Host, but follows Isaac and deals contact damage.
Flesh Mobile Host
Flesh Mobile Host
Acts like the Red Host, but follows Isaac and deals contact damage.
Mushroom
Mushroom
Added in Afterbirth †
Stationary enemy that occasionally pops up and fires four shots in the cardinal or diagonal directions. Takes less damage while its head is down.
Knight
Knight
Moves erratically around the room and charges toward Isaac when in line of sight. Can only be damaged from behind.
Maggot
Maggot
Aimlessly moves around the room, dealing contact damage.
Charger
Charger
Slowly moves around the room, charging at Isaac when he gets in its line of sight.
Spitty
Spitty
Slowly moves around the room, occasionally firing a single blood shot forwards.
Conjoined Spitty
Conjoined Spitty
Slowly moves around the room, occasionally firing blood shots from both ends of its body.
Maw
Maw
Slowly floats towards Isaac, firing blood shots when Isaac is in range of them.
Red Maw
Red Maw
Floats towards Isaac and explodes into 4 blood shots in the cardinal directions upon death.
Mr. Maw
Mr. Maw
Walks towards Isaac and attacks by launching its head towards Isaac. Turns into a Maw or Gusher upon death depending on the killed body segment.
Hive
Hive
Walks around the room, avoiding Isaac while spawning Attack Flies. Spawns a large number of flies upon death, which can be Black Flies, Attack Flies, or Pooters.
Nest
Nest
Walks around the room, avoiding Isaac while spawning Spiders. Spawns a Big Spider or a Trite upon death.
Mulliboom
Mulliboom
Chases Isaac and explodes upon death or upon touching Isaac. The explosion deals a half-heart of damage instead of the regular full heart.
Dukie
Dukie
Added in Afterbirth
Flies around the room diagonally, occasionally spitting out a Dart Fly.
One Tooth
One Tooth
Follows Isaac and periodically dashes towards Isaac when it gets close. Deals contact damage.
Fat Bat
Fat Bat
Added in Afterbirth
Slowly flies towards Isaac. Shoots when Isaac aligns diagonally with it and will actively try to avoid Isaac's shots.
Splasher
Splasher
Walks aimlessly around the room, firing Ipecac shots in random directions.
Round Worm
Round Worm
Pops out of the ground in random locations and spits a blood shot at Isaac if he is in sight.
Nightcrawler
Nightcrawler
Pops out of the ground in random locations and fires four short-range shots that spiral outwards if Isaac is in sight.
Roundy
Roundy
Added in Afterbirth
Pops out of the ground in random locations, creating a small rock wave. Fires an explosive Ipecac shot at Isaac if he is in sight.
Ulcer
Ulcer
Added in Afterbirth
Pops out of the ground in random locations and spawns a Dart Fly if Isaac is in sight. Fires a blood shot after spawning 6 Dart Flies.
Spider
Spider
Erratically moves towards Isaac and deals touch damage.
Big Spider
Big Spider
Erratically moves towards Isaac and deals touch damage. Splits into two Spiders upon death.
Ticking Spider
Ticking Spider
Crawls around the room erratically, following Isaac and dealing touch damage. Can jump small distances. Explodes upon death.
Trite
Trite
Quickly leaps towards Isaac and deals touch damage.
Ragling
Ragling
Quickly leaps towards Isaac and deals touch damage. Randomly shoots two purple shots that orbit around it.
Baby Long Legs
Baby Long Legs
Runs away from Isaac and frequently spawns Spiders.
Small Baby Long Legs
Small Baby Long Legs
Runs away from Isaac and occasionally spawns Sacks.
Crazy Long Legs
Crazy Long Legs
Chases Isaac, dealing touch damage. Occasionally stops to spit blood shots in 8 directions.
Small Crazy Long Legs
Small Crazy Long Legs
Chases Isaac, dealing touch damage. Occasionally stops to spit blood shots diagonally in 4 directions.
Wall Creep
Wall Creep
Crawls along walls to try to line up with Isaac and shoots three blood shots in a line.
Blind Creep
Blind Creep
Randomly crawls along walls and shoots three spread blood shots.
Swarmer
Swarmer
Slowly floats around the room, spawning several Attack Flies. Spawns Pooters upon taking damage. Spawns a Boom Fly upon death.
Tumor
Tumor
Moves around the room diagonally, occasionally firing 6 shots. Fires more often upon getting damaged.
Stone Grimace
Stone Grimace
Stationary and invulnerable monster that occasionally fires blood shots at Isaac. Stops firing when room is cleared.
Constant Stone Shooter
Constant Stone Shooter
Stationary and invulnerable monster that continuously fires shots in a single direction.
Gaping Maw
Gaping Maw
Stationary and invulnerable monster that sucks Isaac towards it, along with Isaac's tears and enemy projectiles.
Slide
Slide
Quickly slides towards Isaac when he gets in its line of sight, then moves slowly back to its original position. Cannot be destroyed.
Portal
Portal
Added in Afterbirth †
Spawns various enemies from the current floor until it either vanishes or is killed.
Mini-Bosses

Bosses[edit | edit source]

Boss Chub.png
Boss Gurdy.png
Boss Gurdy Jr..png
Boss Mega Maw.png
Boss Pestilence.png
Chub Gurdy Gurdy Jr. Mega Maw Pestilence Needs to be unlocked
Boss Mega Fatty.png
Boss Peep.png
Boss C.H.A.D..png
Boss Dark One.png
Mega Fatty Peep C.H.A.D. Needs to be unlocked Dark One
Boss The Stain.png
Boss The Frail.png
Boss The Forsaken.png
The Stain Added in Afterbirth Needs to be unlocked The Frail Added in Afterbirth Needs to be unlocked The Forsaken Added in Afterbirth Needs to be unlocked
Boss Big Horn.png
Boss Rag Mega.png
Big Horn Added in Afterbirth † Needs to be unlocked Rag Mega Added in Afterbirth † Needs to be unlocked

Double Trouble

Boss Blighted Ovum.png
Boss The Duke of Flies.png
Boss Mega Fatty.png
Boss Monstro.png Boss Pin.png
(Double Trouble)

Blighted Ovum

(Double Trouble)

The Duke of Flies

(Double Trouble)

Mega Fatty

(Double Trouble)

Monstro

(Double Trouble)

Pin

Unlockable Achievements[edit | edit source]

  • Spelunker Boy
    Spelunker Boy - Beat chapter 2 without taking damage.

Music[edit | edit source]

The music in the caves is titled Sodden Hollow. The word "sodden" in the name is used to describe the damp, wet appearance of the caves.

Binding of Isaac: Rebirth Music


SmallIsaac.pngChaptersSmallIsaac.png
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Optional Chapter 5 Chapter 6 Endgame
Normal mode only
Hard mode only
Stage basement.png Stage caves.png Stage depths.png Stage womb.png Stage sheol.png
Sheol


Stage cathedral.png
Cathedral
Stage dark room.png
Dark Room


Stage chest.png
The Chest
The Basement The Caves The Depths The Womb
Added in Afterbirth Added in Afterbirth †
Stage cellar.png Stage catacombs.png Stage necropolis.png Stage utero.png ??? Stage the void.png
The Cellar The Catacombs Necropolis Utero ??? The Void
Added in Afterbirth Added in Afterbirth Added in Afterbirth Added in Afterbirth
Stage burning basement.png Stage flooded caves.png Stage dank depths.png Stage scarred womb.png
Burning Basement Flooded Caves Dank Depths Scarred Womb
Added in Afterbirth Greed mode only
Added in Afterbirth † Greedier mode only
Added in Afterbirth Added in Afterbirth
Stage basement.png Stage caves.png Stage depths.png Stage womb.png Stage sheol.png The Shop Ultra Greed
The Basement The Caves The Depths The Womb Sheol The Shop Ultra Greed


The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
MainPageAchievements.png Achievements MainPageAttributes.png Attributes MainPageBosses.png Bosses TarotCard.png Cards and Runes MainPageChallenges.png Challenges MainPageChapters.png Chapters
Isaac App.png Characters MainPageBabies.png Co-op MainPageItems Small.png Items Item Pools Item Pools MainPageMonsters.png Monsters MainPageObjects.png Objects
Red heart.png Pickups BlueBlue.png Pills MainPageRooms.png Rooms MainPageSeeds2.png Seeds Guppy App.png Transformations The Left Hand Icon.png Trinkets