Corpse

(chapter 4.5)
Stage ID	33
Floor ID	7c
Unlock Method	Defeat Hush 3 times

The Corpse is a new floor added in The Binding of Isaac: Repentance, which acts as Womb's alternative Chapter. It features a desolate and dreary atmosphere with enemies that carry the theme of death and advanced rot. The Corpse is one of five final levels in The Binding of Isaac, alongside Chest, the Dark Room, The Void and Home.

To access The Corpse, the player must first open the flesh door at the end of the Template:Stage/Template:Stage II after defeating the Mausoleum version of Mom by doing one of the following:

• Collect Knife Piece 1 and Knife Piece 2 , which are obtained via puzzles inside Downpour and Mines, to build the knife familiar, and stab the door with it.
• Sacrifice one key and open the door by using Sharp Key .
• Cracked Orb can also open the door while simultaneously letting you keep the knife familiar.

(Note: The item Mama Mega! can not be used to open the Flesh Door)

On the other side of the flesh door, the player will fight the Mausoleum version of Mom's Heart, after which the entrance to the Womb will turn into the Corpse entrance, which will take the player into the Corpse floor.

The boss of Corpse II is always Mother.

The Red Key cannot open doors to the I AM ERROR room in Corpse II.
We Need To Go Deeper! and Rune of Ehwaz cannot generate trapdoors in Corpse II.
Corpse II cannot be exited through an I AM ERROR room (which themselves can only generate via clipping out of a Crawl Space). A passageway will generate within the error room which leads back to the starting room of the floor.

Monsters

Entity	ID	Description
Charger	23.0	Slowly moves around the room, charging at Isaac when he gets in its line of sight.
Level 2 Gaper	850.0	Walks towards Isaac, dealing a full Heart of contact damage. Splits into a Level 2 Horf and Level 2 Gusher upon death.
Level 2 Horf	850.1	Slowly floats toward Isaac, spitting Small Maggots at him.
Level 2 Gusher	850.2	Runs aimlessly around the room, spitting up Small Maggots.
Level 2 Charger	855.0	Slowly moves around the room, charging at Isaac when he gets in its line of sight. Can slowly change its trajectory while charging.
Twitchy	851.0	Alternates between walking towards and rapidly leaping at Isaac, dealing contact damage. Can leap to Isaac's current position, or where Isaac is heading, and can also leap away to dodge incoming fire.
Spikeball	852.0	Spike balls that fly in a line either horizontally or vertically, bouncing off walls and obstacles.
Small Maggot	853.0	Slowly crawls toward Isaac, dealing contact damage.
Mama Fly	61.4	Flies more-or-less away from Isaac, occasionally plopping on the ground to plant a Pustule. Upon death, they spawn a group of Small Maggots.
Adult Leech	854.0	Wanders around the room, quickly charging at Isaac when he lines up horizontally with him and releasing a ring of blood shots upon colliding with a wall. After taking a certain amount of damage, burrows into the ground and reappears by falling above Isaac, releasing another ring of blood shots and only performing this behavior once.
Cohort	857.0	Acts similarly to Monstro, hopping towards Isaac and can either spit a large projectile towards Isaac that bursts into 8 smaller projectiles or cough up a burst of arcing projectiles and a pile of Globin goo. Spawns 4 piles of Globin goo upon death.
Pustule	861.0	Slowly increases in size over time, spawning Small Maggots and damaging red creep depending on its size upon death. If it grows to full size, it transforms into a Bloodfly.
Cyst	862.0	Attaches itself to a wall or obstacle and rolls around it, regularly firing blood shots at Isaac.
Evis	865.0	Randomly wanders around the room. Launches a string of guts when Isaac gets close to it, which it uses to pull Isaac toward itself.
Gutted Fatty	831.0	Slowly lumbers around the room, occasionally spawning Festering Guts. Its eyes dislocate as it takes damage, which are invincible and follow the Gutted Fatty but chase Isaac if he gets close to them. Creates a geyser of blood projectiles upon death.
Festering Guts	831.20	Spawned by Gutted Fatties, Festering Guts randomly slide around the room and occasionally spawn a Charger.
Spikeball	852.0	Spike balls that fly in a line either horizontally or vertically, bouncing off walls and obstacles.
Bloodfly	61.6	Spawned only after a Pustule bursts. Flies in erratic, angled movements toward Isaac. Fires four blood shots in the cardinal directions upon death.
Gasbag	856.0	Occasionally summons Army Flies to chase Isaac. Is surrounded by a ring of toxic gas that hurts Isaac if he stands in it for too long.
Army Fly	868.0	Chases Isaac, moving along the cardinal directions. Forms a line with other Army Flies in the room. Deals contact damage.
Globin	24.0	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	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.
Dead Meat	57.2	Slowly moves around the room, occasionally hopping and firing 8 large blood shots in all directions that bounce off the walls. Splits into 2 Cysts upon death.
Unborn	860.0	Floats quickly towards Isaac, and occasionally teleports to another position near him.
Rotten Gaper	10.3	Walks toward Isaac, dealing contact damage. Its behavior varies slightly depending on its facial expression.
Leech	55.0	Quickly charges towards Isaac when he gets in its line of sight.
Maggot	21.0	Aimlessly moves around the room, dealing contact damage.
Dead Isaac	912.20	Summoned by Mother at the bottom of the arena, they walk upward (ignoring Isaac completely), and deal contact damage. Releases a burst of blood shots upon being killed by Mother, while she launches their corpses towards Isaac.

Bosses

The Scourge	Rotgut	Chimera	Mother

Music

• The music for Corpse is titled Carrion. The term “carrion” refers to the decaying flesh of dead animals.

The Binding of Isaac: Rebirth OST

Trivia

• Corpse is the only Alternative Chapter to not have any alternative floors.
  • An unused floor named Mortis presumably as an alternative to Corpse exists in the game files.
• In Antibirth, The hole to the Mother battle had 4 Golden Chests next to it that always contained items, similar to chests in The Chest.

The Binding of Isaac: Rebirth
Achievements Challenges Completion Marks Items Trinkets Characters Chapters Rooms Transformations Attributes Bosses Monsters Pickups Modes Curses Objects Seeds Effects Endings
Collection Item Pools Version History Modding Music