The Binding of Isaac: Repentance/Additions

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Playable Characters[edit | edit source]

The following characters will return from Antibirth[1], though it is unknown how similarly they will function to the mod:

Items And Trinkets[edit | edit source]

Activated Collectibles[edit | edit source]



Spin to Win[edit | edit source]

  • Grants a spinning wheel orbital that deals contact damage to enemies while held.
  • Holding spacebar will gradually deplete the charge bar.
  • Grants +0.5 speed when held down, until the charge bar hits zero.
  • Increases speed of orbitals when the spacebar is held down.
  • Has a recharge time of one room.

Vade Retro[edit | edit source]

  • Enemies spawn a stationary ghost familiar on death.
    • Minibosses/Bosses spawn larger versions of stationary ghost familiars.
    • Ghost Suture from Blighted Ovum doesn't spawn a stationary ghost familiar upon death.
  • Ghosts explode on use, dealing damage to adjacent enemies, not Isaac.
    • Enemies killed by explosions turn into ghosts.
  • Has no recharge time and thus can be used infinitely.

Plum Flute[edit | edit source]

  • Drops from Baby Plum if she is still alive after a certain amount of time, at which point she will wave to the player before flying off-screen.
  • Activating it summons Baby Plum to fight alongside you, somewhat like Monstro's Tooth, except she will continuously attack for a few seconds.
  • Has a recharge time of four rooms.

Unknown Rune item

  • Effect unconfirmed. Has a recharge time of four rooms.


  • Single use angel room item, unknown effect.

Passive Collectibles[edit | edit source]

Antibirth[edit | edit source]


Giant Cell[edit | edit source]

  • Every time Isaac takes damage, a familiar is spawned that follows Isaac's movements and fires weak tears when Isaac does.

Tropicamide[edit | edit source]

Vasculitis[edit | edit source]

  • Unconfirmed. Likely causes a random number of blood shots to come from enemies in random directions when killed.

False PHD [2][edit | edit source]

  • Grants 1 Black Heart. Replaces all pills with their worse counterparts.[3] Possibly has other effects.

Dream Catcher[4][edit | edit source]

  • Predicts which item and boss will appear in the upcoming floor during the loading sequences between floors.

Trinkets[edit | edit source]

Antibirth[edit | edit source]


Unknown Heart Locket trinket

  • Effect unconfirmed. Seemingly causes familiars who follow Isaac to orbit him instead.

Unknown Penny trinket

  • Effect not shown.

Pickups[edit | edit source]

Antibirth[edit | edit source]

Entities[edit | edit source]

Bosses[edit | edit source]

Antibirth[edit | edit source]

  • Baby Plum: A giant Red Boom Fly that flies around the room spitting blood shots.
  • Wormwood: A giant leech that can create holes in the floor and launch itself through walls. It also appears in the Dross with alternate dark green palette.
  • Lil Bub (Formerly known in Antibirth as Beelzeblub): A drowned version of The Duke of Flies that spits Small Leeches instead of flies. Also appears in the Dross and Boss Challenge Rooms in Downpour.
  • The Rainmaker: A humanoid ghost that pirouettes around and controls the water in the room. Also appears in Boss Challenge Rooms in Downpour.
  • Hornfel: A small humanoid demon that rides in a Minecart, traveling through doors and throwing variants of bombs, while backed by some other enemies in Minecarts.
  • Great Gideon: A giant grimace that cannot be killed under normal circumstances. Instead, it summons waves of enemies that must be cleared out, while firing at Isaac as well.
  • Reap Creep: A giant Wall Creep who takes elements from three of the enemy's variants. It sticks to the top wall and attacks Isaac while moving around.
  • Tuff Twins: A pair of armored Larry Jr.'s who must be rendered vulnerable by using explosives against them.
  • The Witness[5] (Might be renamed)


Clog[edit | edit source]

  • Fires poop spiral shots.
  • Spawns rolling Dross Dips.
  • Shoots out 3 lines of waves, similarly to The Cage but with fart appearance. These waves spawn poops and corny poops.
  • Creates a whirlpool that moves objects around him in a spiral pattern.
  • Upon death, gets "flushed" by an unknown source and spirals downwards until he disappears.

Min Min[6][edit | edit source]

  • A variant of The Husk with an unknown first phase. The seen phase greatly resembles the third phase of Isaac. Appears in the Downpour.
  • Appears as a flaming ghost and moves towards Isaac, summoning a ring of Willo Flies.
  • Ducks under the water and creates several light patches around the room. These patches become Willo Flies.

Singe[7][edit | edit source]

  • A humanoid boss appearing in Ashpit.
  • Currently its behaviour is unknown.

Bumbino[8][edit | edit source]

  • A boss version of Bumbo. Appears in Flooded Caves.
  • Swipes at the player, destroying obstacles in his way.
  • Slams the ground, creating a rock wave similar to The Cage.
  • Charges at the wall, causing rocks to cascade down. He becomes dizzy for a while afterward.

Monsters[edit | edit source]

Antibirth[edit | edit source]

All enemies from Antibirth may return[9], with a few receiving slight edits. The following, however, are confirmed to be in the game by official ingame reveals:

  • Main path:
    • Soi Creep: Crawls along walls to try to line up with Isaac and rapidly fires white tears in a straight line.
    • Grilled Clotty: A flaming variant of Clotty that fires 4 shots in cardinal directions quicker. Unlike Antibirth, the shots are now fully straight in cardinal directions.
    • Coal Spider: A variant of Rock Spider that leaves out persisting coal that can damage Isaac upon death. Found in the Burning Basement, Mines, and Ashpit.
  • Downpour:
    • Blurb: Spits out a cluster of shots when Isaac gets close and then follows like a regular Gaper.
    • Small Leech: Chases the player.
    • Wraith: Invisible except for in the water's reflection.
    • Tidal Gaper: Pops out from the water when all enemies in a room are defeated.
    • Prey: A submerged Mulligan that spawns Small Leeches.
    • Bubbles: A drowned Fatty that occasionally farts out tears. When killed, it causes a large cluster of tears similar to Tube Worm's to come raining down from the sky.
    • Willo: A firefly that orbits around Isaac, periodically firing a firey tear at him.
    • Polty: A ghost that pops out of a bucket when the player is nearby it and lifts obstacles like Buckets and Rocks, throwing them at the player.
    • Sub Horf: A drowned Horf whose head rotates while firing tears when damaged.
    • Strider: An aquatic Spider that glides across the water.
    • Mullighoul: A ghost Mulligan that floats away from the player and spits out Willos, and spawns Willos on death.
  • Mines:
    • Bomb Grimace: Spits out Red Bombs that the player can throw in the room.
    • Quake Grimace: Fires rock waves periodically even after the room is cleared.
    • Mole: Slowly digs underground towards Isaac. When they get close, they pop up and fire three blood shots at Isaac.
    • Faceless: Wanders and fires tears in six directions. If Isaac gets close, it will start chasing him.
    • Hard Host: Stationary enemy that is normally invulnerable. Raises its head when Isaac gets close, revealing a fleshy stem that can be damaged. After a short delay, it slams its head down, sending a rock wave towards Isaac.
    • Bouncer: Runs away from Isaac. If Isaac gets close, its head inflates and it starts chasing Isaac. Releases a chaotic burst of red shots upon death.
    • Rock Spider: Skitters towards Isaac when he's close and may turn into a normal Spider upon death.
    • Gyro: Rolls around aimlessly. If Isaac gets close, it starts rapidly rolling towards him.
    • Grilled Gyro: Rolls around aimlessly. If Isaac gets close, it starts rapidly rolling towards him and leaves fires on the ground.
    • Dragon Fly: Flies around the room diagonally. Upon death, it releases fire in either the cardinal or diagonal directions, depending on the appearance of its eyes.
    • Pon: Hops around the room, leaving pools of damaging red creep.
    • Ink: Chases Isaac. Fires 4 black diagonal shots and leaves black creep upon death.
    • Danny: Walks towards Isaac periodically firing several rocks towards him, some of which may be rock spiders.
    • Coal Boy: Walks towards Isaac, periodically firing several hot rocks towards Isaac, some of which may be Coal Spiders. Hot coals linger and can hurt Isaac.
  • Mausoleum:

Four Souls[edit | edit source]

  • While unconfirmed, it is possible that Repentance will feature new enemy variants originally exclusive to the card game "The Binding of Isaac: Four Souls".


Basement[edit | edit source]

  • A green variant of Attack Fly that moves in a single file along with other green flies.
  • A yellow variant of Pooter that moves erratically and steals charges from Isaac's active item. Appears in the Mines and Treasure Rooms as well as the Flooded Caves.
  • A Swarm Fly variant of Spiders.

Flooded Caves[edit | edit source]

  • A mini version of Pin.

Downpour[edit | edit source]

  • A new variant of Fatty that vomits green creep and leaves a puddle of it upon death.

Dross[edit | edit source]

  • Dross variant of Squirt that dashes towards the player twice.
  • Variant of Mulligan that chases the player and periodically spits out poison gas.
  • A floating enemy that spits out poison gas and explodes upon death.
  • A round Dip variant in Dross that does short rolls randomly around the room. Spawned by Dross Squirts upon death and Clog.
  • A variant of corn that shoots a single corn shot at the player upon death.
  • Flymaster[10]: A humanoid enemy that floats and chases Isaac. Has Attack Flies surround it, periodically coughing them away to launch them in all directions.
  • A new Dross variant of Clotty.
  • A worm-like enemy that slowly crawls towards Isaac and loses its head when taking a certain amount of damage, both segments leaving brown creep.

Mines[edit | edit source]

  • A variant of Level 2 Spider that spawns 3 troll bombs upon death. Also found in the Ashpit.

Ashpit[edit | edit source]

  • A new variant of the Boom Fly.
  • An unknown grey monster with a big mouth.
  • An unknown flying enemy that pushes itself towards Isaac in short bursts.

Dank Depths[edit | edit source]

  • A new variant of Buttlicker that starts separated but connects with another Buttlicker as a segment if both collide to each other.
  • A new Hopper variant.

Mausoleum[edit | edit source]

  • An unknown variant of the Poky that has a purple-ish tint and a blood-red eye in the middle.

Audio[edit | edit source]

  • The Music is once again composed by Ridiculon.
    • Whilst not being in the official release, a fully updated Antibirth soundtrack may be released by Mudeth as a mod.

Environment[edit | edit source]

Chapters[edit | edit source]

Dross[edit | edit source]

  • A Sewer-themed alternate floor of Downpour.
  • In some rooms, has rushing water that affects Isaac's movement.
  • Contains new monsters and new skins of monsters found elsewhere.
  • New music

Ashpit[edit | edit source]

  • An alternate floor of the Mines.

Obstacles[edit | edit source]

Rooms[edit | edit source]

  • The name for this enemy comes from this concept art by _Kilburn.