recursal/Fanatic-Fandom huggingface dataset:
Mausoleum

**Mausoleum** is a new environment added in *Antibirth*. It contains many necrotic-themed and psychic-themed enemies, as well as teleporters that can connect different parts of the same room or two different rooms. The Mausoleum is almost always segmented into two main areas. The primary area, where Isaac enters, contains a standard set of rooms along with a special teleporter room. The teleporter room requires Isaac to expend resources or maneuver through obstacles to reach a teleporter, which transports Isaac to the secondary area. The secondary area contains a few rewards, along with additional random special rooms.

Treasure rooms in the Mausoleum always have two items to choose from.

After "A Secret Exit" is unlocked, a locked door to the Mausoleum will appear upon completing The Depths, Necropolis, or Mines. The locked door requires two soul hearts, immortal, or black hearts to enter. The door will always take soul hearts before it takes black hearts, and black hearts before it takes immortal. If playing as Bethany, the door will instead take 4 charges from her counter, and if playing as The Lost, it is free to enter.

## Monsters

* Monstro
* Widow
* Gurdy

### Rebirth Monsters

* Bony
* Wizoob
* Lil' Haunt
* Fat Sack
* Gaper (rare)
* Rotty
* Stone Grimace
* Psychic Maw
* Knight
* Selfless Knight
* Floating Knight

## Knife Piece

* Mausoleum II contains Knife Piece 3, one of three pieces necessary to enter the Corpse.

* Somewhere in the primary area of the floor, there will be a room containing many fireplaces. In the secondary area of the floor, there will be a room containing active and inactive teleporters in the same formation as the fireplaces. To acquire Knife Piece 3, put out the fires in the fireplace room that correspond with the inactive teleporters.

* Try to not take Abel or Lil' Dumpy as these familiars might put out fires that should stay active.

## Notes

* When the heart boss fight inside the flesh room is defeated, all pickups and trinkets on the current Mausoleum floor will disappear.

## Bugs

 ****Bug!**** The teleporter to the secondary area or back may teleport Isaac to a random room near the designated area when the curse of the maze is active.
 ****Bug!**** If the player has all three knife pieces and defeats Mausoleum Mom, there is a chance that the door leading to the Mom's Heart fight might be a door that can only be opened by a bomb instead of the knife. When entered, the room will only have a passage to the Corpse and no heart boss fight.
 ****Bug!**** If a Devil Room door appears on the same wall as the Mausoleum door in a double-sized Boss Room, entering and exiting the Devil Room may cause its door to take the Mausoleum door's place. Upon exiting and re-entering the Boss Room, the Mausoleum door will be open.
 ****Bug!**** When the Mausoleum door appears, quitting and re-entering in the game will cause the door to be unable to be open.
## Gallery

* Mausoleum XL not segmented in two areas

## Music

* The track that plays in the Mausoleum is titled Machine In The Walls.
Apple of Sodom

**Apple of Sodom** is a trinket added in *The Binding of Isaac: Repentance*.

## Effects

* Picking up a Red Heart has a 50% chance to consume the heart and spawn Blue Spiders, causing a fart similar to .
	+ Isaac can pick up hearts even while at full health. In this case, the chance goes to 100%.
* Has no effect on Rotten Hearts, Blended Hearts and any other type of heart.

## Notes

* The number of spiders spawned depends on the type of heart that was picked up:
	+ Half Red Hearts will spawn 1-3 spiders.
	+ Full Red Hearts will spawn 3-5 spiders.
	+ Double Hearts will spawn 6-8 spiders.
* The trinket allows characters that cannot use red hearts ( ???,  The Lost,  Dark Judas,  Tainted ???,  Tainted Lost,  Tainted Judas, and  Tainted Soul) to gain value from red hearts.
	+ If  The Lost or  Tainted Lost pick up a blended heart, it will not be converted to blue spiders, as it is treated as a soul heart.
	+ In co-op, this allows  Keeper and  Tainted Keeper to convert red hearts into blue spiders.
* If the effect procs when buying a red heart from the Shop, it will not consume any money. However, Isaac must have the amount of coins needed to purchase the heart.
* Items that directly heal the player, such as , cannot produce any spiders. The hearts must be picked up off the ground manually.

## Synergies

* /  Tainted Magdalene: The temporary hearts dropped upon taking damage can be turned into blue spiders.
* : Converting hearts dropped by Options? will not cause the other consumable to disappear.

## Interactions

* : Does not increase stats if the heart is converted to spiders.
* Golden Trinket / : No effect.
* : Has a 50% chance to turn a heart into a blue spider or put it in The Jar.

## Trivia

* Apple of Sodom was a cut trinket from Antibirth. It was most likely going to be an unlock for the unused character Edith.
* In real life, an Apple of Sodom is a plant that produces extremely bitter fruit. It is named after the city of Sodom, a place mentioned in the Bible. In the Hebrew Bible, the apple of Sodom is referenced metamorphically to represent something that appears good but is actually poisonous.
Scat Man

Scatman is the first challenge added in the current state of Antibirth (and the 2nd overall) and is unlocked from the start of the game. You are tasked with making it to Mom relying solely on your Dip familiars, as you are blindfolded and unable to fire tears.

## Strategy

* Because you cannot fire tears, your initial cache of bombs are limited, your dips have a finite amount of health (sans one variant), it is highly recommended that you do not swap out The Poop for another active item unless you have Schoolbag because poops are your main way of restocking on Dip familiars.
* Take advantage of enemies that don't do contact damage by turning them into poops and thus increasing your army.
* Red Poops can be very beneficial because they spawn Red Dips who can refill their health.
* If you've unlocked A Card Against Humanity, finding one in the shop can easily help you coast through the challenge if used in a large room.
* There is a max amount of dips

## Trivia

* The name of the challenge is a reference to a popular Youtube video of the same name.

Challenges
 6x.
Best Friend

**Best Friend** is an activated item.

## Effect

* Spawns a decoy vaguely resembling Isaac in his crying animation, which explodes after 5 seconds with the blast radius of a Mega Troll Bomb.
	+ The explosion deals 110 damage.
	+ The explosion deals 185 damage.
* The decoy bomb distracts enemies, as they will target the decoy instead of Isaac regardless of distance.

## Notes

* All Bomb modifier items will affect Best Friend, with the exception of , , , , and .
	+ will create mini decoys.
* Bosses such as Chub or Carrion Queen can swallow the decoy bomb just like a regular bomb.
* Isaac can push the decoy bomb by walking into it or shooting it with his tears just like regular bombs.

## Synergies

* : Creates wisps that are small Isaac heads with a white flame in the middle ring. Tears shot by these have a 7.5% of applying the mark status effect, akin to .
* : Spawns two decoys on top of each other.
* + : The decoy bomb is affected by remote detonator.

## Trivia

* Edmund McMillen stated that Best Friend would no longer "Die upon touch". This is a reference to a bug in the original *The Binding of Isaac* where, in many circumstances, Isaac could take glitched hits (often killing Isaac outright).
* Best Friend works remarkably similar to Pipe Bombs in Left 4 Dead, down to the 5 second timer and not working on bosses.

## Gallery

* The icon of Best Friend as seen on the lower 3DS screen.
* Best Friend when deployed onto the ground.
A Dollar

**A Dollar** is a passive item.

## Effect

* Gives Isaac 100 Pennies.
	+ This does not extend past the normal cap of 99.

## Notes

* The Dollar can only be found from a Slot Machine, as a starting item for  Eden, using  on , or by using .
* Rerolling this item with the , etc., will not remove the coins acquired.
* Multiple copies of A Dollar can be found in the same run from different Slot Machines.
* Since the normal coin cap is 99, the full 100 coins can only be seen if Isaac has .
* The item cannot be crafted using .

## Trivia

* This item is the Penny counterpart to  and .
Fly

**Flies** are very common enemies, found on nearly every floor, including the new floors added in The Binding of Isaac: Antibirth. The item Skatole will change the behavior of most flies.

## Variations

### Willo

**Willoes** are a type of fly that orbits Isaac. As they orbit Isaac, they will spark up a bit and then fire an orange shot inwards at Isaac.

They can be spawned by Mullighouls.

### Dragonfly

**Dragonflies** are a type of fly that bounce diagonally across a room like Boom Flies. However, when killed, instead of exploding, it will release a stream of fire in either the cardinal or diagonal directions, depending on whether their eyes are opened or closed respectively.

### Fly Bomb

**Fly Bombs** fly erratically towards Isaac and are fairly fast, but do no contact damage. When killed, they will turn into a miniature bomb that explodes after a short delay. This miniature bomb behaves like a regular bomb, damaging Isaac and monsters. These can be spawned by Blasters.

* Fly Bombs can be instantly killed by using Remote Detonator. This causes them to explode immediately.

### Ink

Inks are a type of Sucker that slowly flies towards Isaac. Upon death, it will release 4 black ink shots in the diagonal directions and leave a puddle of slowing black creep.

### Mama Fly

Mama Flies slowly fly around aimlessly and periodically spawn Pustules on the ground. Upon death, they release Small Maggots.

### Sick Boom Fly

Sick Boom Flies bounce diagonally around a room like Boom Flies. When killed, they spawn a large cloud of poison that will hurt Isaac if he stays in it for too long.
Battery (Disambiguation)

**Battery** may refer to:

## Items

* , recharges the first energy slot of an activated collectible after each discharge.
* , allows activated items to store an additional full charge.
* , doubles the effect of Isaac's activated items.
* , gain charges from dealing damage, clearing rooms no longer charges items.
* , spawns 2-4 battery pickups

## Pickups

* Lil' Battery, fully charges your activated item on pickup.
* a variety of Batteries were added as part of Repentance

## Trinkets

* , recharges the last energy slot of an activated item as it's approaching full charge.
* , increases chance of Lil' Battery pickups, chance to add an extra charge upon room completion.

## Familiars

* , occasionally spawns batteries and adds charges to Isaac's active item. Also can freeze enemies.
Ball of Tar

**Ball of Tar** is a passive item.

## Effects

* Adds a chance to shoot slowing tears, reducing the speed of enemy movement and any projectiles they fire.
* Isaac leaves a trail of slowing Black creep.

## Notes

* The chance to fire slowing tears depends on the luck stat, and the formula used to determine the chance is:

1

10
−

⌊

L
u
c
k

∗
0.5

⌋

{\displaystyle \frac1 { 10 - \left \lfloor \mathit{Luck} \* 0.5 \right \rfloor}}

	+ At base luck (0), the chance is 10%, maxing out at 100% at 18 luck.

## Interactions

* : The creep generated by Ball of Tar will disable the slowing effect.

## Trivia

* This item's costume has the appearance of Gish, the titular main character of one of Edmund McMillen's earlier games and a boss in *Rebirth*.
	+ ???'s costume has the appearance of Ash, the main character of *The End is Nigh*, Edmund McMillen's 2017 platformer game.

## Gallery

* ???'s unique appearance with Ball of Tar, resembling Ash from *The End is Nigh*.
Collection

Redirect to:

* Collection Page

# Rebirth Complete Collection Grid

These are the pages as they would appear ingame with Antibirth installed.

There are 341 items that appear in the 4 tables below, indicating all the items which can be obtained in the game.

Each table represents a page viewed in the "Items" page of the "Stats" menu.

*(Click images to open the corresponding item page)*
Book (Disambiguation)

**Book** may refer to:

## Items

* , activation spawns six Troll Bombs
* , activation adds a Soul Heart to Isaac's health,
* , activation grants the effect of The Compass, Treasure Map, or Blue Map for the current floor. Cannot activate the same effect twice.
* , activation grants a shield that protects Isaac from any damage for ten seconds.
* , activation along with a movement key allows Isaac to jump over obstacles and gaps in the chosen direction
* , activation summons a random familiar  for the duration of the room /for the current floor
* , activation applies a Black Heart to Isaac's health. When used, Boss Room items become Devil Room items that Isaac has to pay for.
* , activation grants homing tears for the current room
* , activation grants flight for the current room and instantly kills Mom and Mom's heart / It lives
* , activation grants 2+ damage for the current room. (damage stacks) While held increases Isaac's chance to get Devil Rooms or Angel Rooms by 12.5%.
* , activation drops a random pickup. (excluding chests)
* , activation deals 40 damage to every vulnerable enemy in the room.
* , activation spawns an orbital bone familiar, a friendly Bony, or a friendly Black Bony for each enemy killed in the room.
* , activation spawns a wisp that orbits Isaac and fires small spectral tears alongside him, and passively grants a wisp-spawning effect to all other active items
* , activation spawns the soul of a random passive item to act as a destructible orbital familiar, which grants that item's effect as long as it lives

## Locations

* Library, commonly contains at least one book-related item.
Bible Tract

**Bible Tract** is a trinket.

## Effect

* Increases the chance of Eternal Hearts appearing.

## Synergies

* Golden Trinket / : Further increase for chance of Eternal Hearts appearing.

## Notes

* Despite its pickup quote, this trinket does not alter the chance of finding Angel Rooms in any way.

## Trivia

* This trinket is a reference to religious tracts.
Bomber Boy

**Bomber Boy** is a passive item added in *The Binding of Isaac: Afterbirth*.

## Effects

* Grants 5 Bombs.
* Causes bombs to explode in a large cross-shaped blast by adding two additional explosions in each cardinal direction.
	+ The damage for a single explosion is  unchanged (60)  0.75x times its normal damage (resulting in 75 damage per explosion). Each successive explosion that hits the same enemy has its damage halved.

## Notes

* The damage per successive explosion is: 60, 30, 15, 7.5, 3.75, 1.875, 0.9375, 0.46875, 0.234375.
* The damage per successive explosion is: 75, 37.5, 18.75, 9.375, 4.6875, 2.34375, 1.171875, 0.5859375, 0.29296875.
	+ changes the explosions' base damage to 110/185, with the same damage reductions as above.
* With Bomber Boy, Bedrooms, super special rocks, and the Mines can be accessed with a single bomb.
* Bombing the Donation Machine will cause a greater than normal amount of coins to drop from the Donation Machine.
	+ The total amount of dropped coins is still deducted from the Donation Machine, however.
* Bombing a Blue Fire Place or Purple Fire Place may cause it to drop multiple Soul Hearts.
* Bombs are colored blue and no longer have a skull on them.

## Synergies

* ///Red Locusts: Explosion damage is halved with no additional explosions.
	+ ////Red Locusts: Bomber Boy affects the item’s explosion.
		- Red Locusts will create additional smaller explosions that spawn in a tight cross formation.
* : Heals Isaac multiple times per bomb depending on the number of explosions that hit him.
* : Bomber Boy affects the bombs fired by Dr. Fetus.
* /: Bomber Boy affects the missiles' explosions from Epic Fetus, with the explosions' multiplier resulting in 15 times Isaac's damage per explosion. Unlike with regular bombs, Bomber Boy won't decrease the damage from each of the missile's successive explosions, drastically increasing damage.
* : Each extra explosion creates an additional fire.
* : All explosions deal more damage, have a larger radius and will overlap each other more, potentially vastly increasing damage. Caution should be exercised, as the explosions' increased radius make self-damage likely.

## Interactions

* //: Not recommended. The cross pattern explosion makes it very hard to avoid taking damage.
* : Epic Fetus explosions are unaffected.
* : Each additional explosion created has a chance to spawn a pickup or trinket.
	+ : Extra explosions are unaffected by Glitter Bombs.
* : Ipecac explosions are unaffected.
* : Each explosion releases 10 tears in all directions.
	+ : Only the center-most explosion creates 10 tears.

## Trivia

* Bomber Boy is a reference to the 1983 video-game *Bomberman*. *Bomber Boy* is, specifically, the original name of a Game Boy game known as *Atomic Punk* in the United States and *Dynablaster* in Europe and Oceania.
	+ As of *Repentance*, the bomb's appearance when using this item also references how bombs look in *Bomberman*.
* Before *Repentance*, the item's quote was "Explosive blast!".
Blocks

## Metal Blocks

* Blocks movement and projectiles.
* An explosion's blast radius will not extend past it.
* Cannot be destroyed or removed.
* Can only be destroyed by walking over while  is active.
* Can be re-rolled by the  into a destructible obstacle.
* Can only be moved over via flying or jumping.

## Key Blocks

* Acts like Metal Blocks.
* Requires a key to unlock.
* Cannot be flown over.
* Small chance to drop a random pickup when unlocked.
* Can be destroyed with a bomb explosion if  is held.
* Can be destroyed without consuming a key by walking over while  is active.

## Pillars

* Blocks movement and projectiles like a regular block.
* Cannot be flown over.
* Can hide pickups, buttons with beneficial effects (such as opening paths), or enemies behind them.
Black Lipstick

**Black Lipstick** is an unlockable trinket.

## Effect

* Doubles the chance of Black Hearts appearing.

## Notes

* Despite its pickup quote, this trinket does not alter the chance of finding Devil Rooms in any way.
* Black hearts are still very rare even with this trinket equipped.

## Synergies

* : Black Feather grants a damage boost for Black Lipstick, provided that Isaac has an extra trinket slot or has gulped or used  on either of the trinkets.
* Golden Trinket / : Further increase for chance of Black Hearts appearing.
Ankh

**Ankh** is a passive item.

## Effect

* Upon death, Isaac will respawn as  ??? in the previous room, with 3 Soul Hearts.

## Notes

* Resurrection items activate in a set order. Ankh is  6th /  8th in this order after , , ,  Lazarus' inherent extra life ( swap the order of the previous two), , , and .
* Like other items that grant an extra life, but respawn Isaac as a different character, all completion marks earned from the moment of death onward will count towards the new character, not the old.
* During The Beast fight, Isaac respawns in the place he died.

## Synergies

* : Dying and reviving as ??? will give him full benefit of Birthright, which is doubling all soul hearts gained from health ups.
* Tainted ???: Revives as himself, rather than normal ???. Effectively acts as a .

## Trivia

* The Ankh is an Egyptian hieroglyph that means "life".
* It's possible that the resurrection as ??? is a reference to mummies, often depicted as undead in pop culture.
* In the original The Binding of Isaac, the Ankh gave Isaac eyeshadow, like the one Eve wears.
Backstabber

**Backstabber** is a passive item added in *The Binding of Isaac: Afterbirth †*.

## Effects

* When tears land on the "back" of enemies, they deal double damage and inflict bleeding.
	+ Bleeding enemies take damage equal to 10% of their maximum health every 5 seconds. Bosses cannot be inflicted with bleeding, but will still take the extra damage.
	+ Enemies bleed for 5 seconds, bleeding enemies take damage based on how quickly they move; the faster the enemy, the more damage they take. While moving, a bleeding enemy leaves behind red creep that can damage other enemies. Bosses can also be inflicted with bleeding.
	+ The extra damage is dealt even if the enemy is already bleeding.

## Synergies

* : Brimstone lasers will pierce the enemy and inflict Backstabber's effect.
* : Freezing an enemy from its back using Dark Arts will apply Backstabber's effect.
* Shooting familiars: Tears fired by familiars can inflict the effects of Backstabber.
* : The Ludovico tear will nearly always backstab when over an enemy.
* : will pierce both sides of the enemy and inflict Backstabber's effect.

## Trivia

* This item is a reference to the backstabbing mechanic in various video games, where backstabbing results in more damage done to the target. However, the mechanic of backstabbing is usually applied to melee weapons, not ranged weapons.
	+ It may also be a reference to Judas' betrayal of Jesus.
* Backstabber was originally an unofficial item which was supposed to showcase the modding capabilities of *Afterbirth+* in the PAX 2016 livestream. However, all items included in the demo were later added to the final game.
Blanket

**Blanket** is an unlockable passive item added in *The Binding of Isaac: Afterbirth † (Booster Pack #5)*.

## Effects

* Heals one Red Heart.
* Grants one Soul Heart.
* Upon entering a Boss Room, grants a shield that blocks one hit, then disappears.

## Notes

* This item's shield effect has the same synergies and interactions as  with the only difference being that when paired with Holy Mantle or  The Lost's innate shield it can still reapply later into the run. For a list of synergies and interactions, visit that page.
* If the shield is not broken before leaving the room or entering the next floor, it will disappear by itself.
* Reentering a boss room after the boss has been defeated will still grant a shield.
* Multiple Blankets will only give 1 shield.
* In Greed Mode, this item grants a shield only for the two boss fights on the final level. The shield does not activate for the regular boss waves on previous floors.
* To quickly unlock this item, keep restarting Greed mode to enter its Curse Room which occasionally contains a bed.

## Trivia

* Blanket is based on this Steam Workshop item by P.5000 and Ratlah, originally known as Security Blanket.
* This item is part of a set of bedtime-themed items, including , , , and .
* This item may be a reference to Linus van Pelt's famous blue security blanket, as seen in *Peanuts*.
Boiled Baby

**Boiled Baby** is a passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Gives Isaac a familiar that fires chaotic bursts of tears in all directions at random intervals while in a room with enemies, shooting faster the closer it is to an enemy, similarly to Boils.
	+ Each tear fired by Boiled Baby does either 3.5 or 5.3 damage, with no in-between.
* This item belongs to the  set. Collecting three items from this set will transform Isaac into a three-faced version of himself.

## Notes

* Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Boiled Baby having the lowest priority at 6th and thus being farther from Isaac than familiars of different priorities.

## Trivia

* Boiled Baby originates from the *Antibirth* mod.
Bombs

This article is about the pickup. For other uses, see Bomb (Disambiguation).

They are used to damage enemies, destroy rocks, and open up closed regular doors and Secret Rooms. When a bomb pickup spawns, there is a chance for it to be replaced by a Troll Bomb instead.

 Isaac's bombs deal 60 damage to enemies and one full heart of damage to himself.

 Isaac's bombs deal 100 damage to enemies and one full heart of damage to himself. Bomb explosions pierce enemy armor.

###  Poop

Poop pick-ups are exclusive to  Tainted ??? as his mechanic uses poops instead of bombs.

 Big Poop Nugget

## Notes

* The probabilities in the table refer to the kind of bomb that is generated by the game when a bomb pickup is spawned with a sub-type of 0 (i.e. a random bomb).
* Pickups, chests, and other movable objects will be flung away if caught in a bomb's explosion radius. Take care not to launch anything you want over spikes or other hazards.
* Troll bombs of all sizes (whether room reward or spawning from monsters) deal a full heart of damage under normal conditions.
* Troll Bombs explode after a random amount of time. This means that if two Troll Bombs spawn at the same time right next to each other, there's a high chance one Troll Bomb will blow up before the other, sending that Troll Bomb sliding outwards a bit before exploding.
	+ Because the timing relates to when the bombs spawn, if you leave the room and reenter, the fuses will reset and the bombs are likely to explode simultaneously, which is generally safer
* Gold bombs can be acquired without the unlock by picking up a Golden Key and then consuming a Bombs Are Key pill.
* Giga bomb explosions will never destroy tiles in front of room exits.
* The HUD icon for bombs changes to a bigger one when Isaac holds a Giga bomb.
* Picked up Giga bombs are always used before normal bombs.
* Picked up Giga bombs will override the Golden bomb effect until all Giga bombs are used and they do not stack with it.
* When playing as  Jacob and Esau, both characters place a bomb at the cost of using up only one.

## Unlockable Achievements

* It's the Key - Defeat The Lamb without taking Hearts, Coins, or Bombs through the entire run.

## Trivia

* Troll Bombs are a reference to Trolling, an internet term for tricking or messing with people psychologically.
	+ The face on the Troll Bomb depicts the Trollface, a face commonly associated with internet trolls and trolling.
* Mega Troll Bombs are spawned by Super Wrath, Super Pride, War (black Champion), and sometimes  Little Horn.
* In the original game, Mega Troll Bombs can't be blocked by obstacles or non-piercing tears, will follow the player at any distance, and are much faster.
AAA Battery

## Effect

* If an activated item would regain its second to last charge upon clearing a room, it is instead fully charged. This effectively reduces its charge time by one bar.

## Notes

* Does not affect items with only one bar of charge or those with automatic recharge.
* Recharging an item by taking damage with , the instant charge given by , or any source of charge other than clearing a room, will not activate the trinket's effect.

## Synergies

* : If active item requires three or more charges, trinket gives an extra charge, effectively utilizing itself with 9 Volt.
* Golden version/: Items require one charge unit fewer to get fully charged.
* : The trinket activates based on the primary item slot, but it grants an extra point of charge to the second item as well.

## Interactions

* : AAA Battery has no effect after picking up 4.5 Volt
* : No effect on the second level charge.
* : Watch Battery triggering after clearing a room will also trigger AAA Battery, provided the activated item was missing exactly 3 charges prior to clearing the room.

## Unlockable Achievements

* Jumper Cables - Pick up any 2 of the following items/trinkets in a single run: , , , , and  ( Any 2 items that have the 'battery' item tag).
Aries

### Collection Grid

*(page 3, column 5, row 10)**(page 3, column 15, row 3)**(page 3, column 16, row 3)*

**Aries** is a passive item.

## Effects

* +0.25 Speed.
	+ Also affects maximum speed (may never exceed 2.0).
* Running into enemies while at a high speed will deal  18 /  25 damage.
	+ At least 0.85 Speed is required to be able to move quickly enough.
		- Moving at this speed also prevents contact damage.

## Synergies

* : Allows Isaac to poison enemies without needing to take a hit, allowing for an impressive amount of Black Hearts to be collected.
* Tainted Forgotten: Throwing the skeleton will deal 80 damage on contact.
* Tainted Magdalene's hugs stack with Aries, dealing insane combined contact damage to enemies. This also makes T. Magdalene invulnerable at high speeds, whilst still generating a decent amount of red hearts.

## Interactions

* : The invulnerability does not extend to the heart.

## Trivia

* The horns that Isaac receives after obtaining Aries are similar to The Lamb's, and very similar to .
Bony

### Found In

**Bonies** are skeleton enemies which wander around the room and quickly throw bone projectiles at Isaac when he lines up with them.

## Variants

### Stage HP

 8
 2

### Found In

**Black Bonies** are harder versions of Bonies that behave identically to regular Bonies, but fire three bones in a row and explode upon death. The first bone will be fired when Isaac lines up, but the second and third one may be fired at an angle towards him.

### Stage HP

 20
 3

### Found In

**Revenants** are variants of Bonies that appear in the Mausoleum and Gehenna. Revenants wander around the room randomly, occasionally stopping to shoot a stream of flames at Isaac. These flames have limited range, and are blocked by obstacles.

### Stage HP

 35
 4

### Found In

**Quad Revenants** act similarly to normal Revenants, but they shoot a 4-way flamethrower that rotates slowly.

### Stage HP

 12
 3

### Found In

**Maze Roamers** are Gehenna-exclusive variants of Bonies that shoot eyeballs at Isaac when lined up. They always spawn in pairs, with their movements and attacks being mirrored between each other. When one dies, the other becomes angry and begins directly pursuing Isaac. The opposite Maze Roamer can be determined by its blood stained rags and mirrored eye socket.

### Stage HP

 60
 14

### Found In

**Holy Bonies** are larger and tougher versions of Bonies that were introduced in *The Binding of Isaac: Repentance*. Its bone projectiles travel in an arc and create a blue flame at its landing spot that blocks shots, deals contact damage, and despawns after some time.

## Gallery

* A Bony's appearance in Mausoleum and Gehenna.
* A Revenant's appearance in Gehenna.
* A Quad Revenant's appearance in Gehenna.
* Mirrored Maze Roamer.
* Concept art for the Bony.
* Concept art for the Holy Bony.

## Trivia

* Despite Bonies being made entirely of bones, they leave bloodstains behind upon death.
	+ They only leave behind bones when killed.
* Bonies are one of a few enemies in-game to have their own unique projectile type.
* Bonies were confirmed to be the first enemy **not designed** by Edmund McMillen. He also confirmed that it was designed by Matt, the lead artist for *The Binding Of Isaac: Rebirth*, and that Edmund loved the simplicity of the AI, fitting "perfectly into the Isaac world."
* Bonies are spawned by The Forsaken, and Black Bonies are spawned by its Black Champion version.
* Holy Bonies, Holy Mulligans, and Holy Eyes originated as cards from the card game *The Binding of Isaac: Four Souls*.
* Holy Bonies have the highest Stage HP among regular Monsters in the game.
* If a Maze Roamer spawns as a Champion, its counterpart will be a Champion of the same type.
* The Maze Roamer's tactic of spawning in groups, lining up with Isaac, and mirroring the other Maze Roamer's movements are similar to the cut enemy Strifer, which appeared in Antibirth. The Strifer also appeared in Mausoleum, the alternate level to Gehenna.
* The Revenant first appeared in the *Antibirth* mod where it also had 2.4 stage hp.
Blood Bombs

**Blood Bombs** is a passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Grants one full Red Heart container.
* Restores 4 Red Hearts.
* Causes Isaac's Bombs to leave a pool of red creep on the ground when they explode.
	+ The creep deals 2 damage per tick (20 per second) and lasts 15 seconds.
	+ Leaves one large creep in the middle, and four small creeps on random direction and distance.
		- Multiple creeps do not inflict damage on an enemy simultaneously.
* If Isaac has no bombs, allows him to place a bomb at the cost of taking half a heart of damage. This prioritizes Red Hearts over Soul Hearts.

## Notes

* Placing a bomb using health counts as self-damage, and as such, does not affect the chances for a Devil deal, does not trigger , nor does it reroll  Tainted Eden.
	+ The Lost /  Tainted Lost will die if a bomb is placed this way.
		- This includes the version of  The Lost you turn into after touching the white fireplace in Downpour II.
* Keeper /  Tainted Keeper will take 1 Coin Heart of damage in exchange for 1 bomb.
* Tainted Bethany can use 1 blood charge in exchange for 1 bomb.
* You can remain at zero bombs and leave excess drops of bombs and hearts to maximize resource use for the floor.
* Placing a bomb using health can let Isaac enter/exit a Curse Room without taking soul/black heart damage.
	+ But be careful and remember to move quickly upon exiting the Curse room, otherwise you'll take damage from the previous bomb.

## Interactions

* //////: Leaves a pool of red creep on the ground after each explosion.
* Creeps from following items can inflict damage on an enemy simultaneously:
	+ Lemon Party
* Creeps from following items do not inflict damage on an enemy simultaneously:
	+ (overrides the damage)
	+ (overrides the damage)
* : Does not increase the radius of creeps.

## Trivia

* Blood Bombs originates from the *Antibirth* mod. In *Antibirth*, Blood Bombs would only heal four hearts and the creep would not be produced if the bomb was eaten by bosses like Chub.
* This is the only bomb-augmenting item that does not give any Bombs on pickup.
	+ The fact that the item gives a heart container and healing instead of bombs may be a hint for the mechanic of using health for bombs, as well as a substitute for actual bombs.
	+ The fact that the item heals 5 hearts may be a reference to many bomb effect items (such as ) that gives Isaac 5 bombs.
* The fact that the item gives a heart container and heals up to exactly 5 containers, along with the appearance, makes it very similar to .
* A Blood Donation Machine will be shown as a cause of death on Isaac's last will if he dies as a result of placing a bomb and losing all health.
A Snack

### Collection Grid

*(page 4, column 1, row 5)**(page 3, column 1, row 6)**(page 3, column 2, row 6)*

**A Snack** is a passive item.

## Effect

* Grants one full Red Heart container.
* Heals 1 additional Red Heart.

## Synergies

* : When Isaac picks up A Snack it now grants: a permanent +0.2 Shot Speed, +1.0 Luck, -0.03 Speed and a temporary +3.6 Damage (which diminishes to 0 in 30 seconds).
	+ Item pedestals can also cycle between the initial item and A Snack due to Binge Eater.

## Trivia

* A Snack was the final item added in Rebirth.
* A Snack appears to be a dog treat.
Bird Cage

**Bird Cage** is an unlockable passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Gives Isaac a fat bird familiar that sits on Isaac's head until he takes damage.
* Upon taking damage, it will jump off of Isaac's head and land on the nearest enemy, dealing damage and creating a rock line in a random direction. For the rest of the room, it acts like , flying around, albeit slower, and dealing contact damage to enemies.
	+ Bird Cage does 45 damage to enemies it lands on and 10 damage per rock wave that hits enemies, then does 3 contact damage per tick while chasing enemies (~6.43 damage per second). The rock waves can destroy obstacles.

## Notes

* If damage is taken in a room with no enemies, the familiar will directly go to the flying phase without performing the jump attack.
* Contact damage can be dealt to nearby enemies even when the familiar jumps off of Isaac's head.
* While the familiar is sitting on Isaac's head, it can be affected by certain character appearances. For example, it will appear fully black if obtained by  Tainted Judas.

## Synergies

* : Spawns 4 rock waves in an X pattern and doubles contact damage. Damage of the jump and the rock waves is unaffected.
* : Can be used after the familiar has jumped.
* : Boosts the familiar's damage while spinning, although has no effect on its speed.

## Interactions

* : Multiple copies of the item provide no benefit and won't make more than one familiar appear.
* : Immediately makes the familiar jump, leaving a ghost copy on Isaac's head until he takes damage. This has no benefit to the damage dealt and will not spawn more than one familiar.

## Trivia

* Bird Cage is from the *Antibirth* mod.
* The item's name is a pun: the familiar resembles The Cage, and it functions like Dead Bird, thus making it a "Bird" version of the Cage.
Belly Jelly

**Belly Jelly** is an unlockable passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Enemies that touch Isaac will bounce off him and propel in the opposite direction. If they hit an obstacle or wall while bouncing, they will take damage.
	+ If an enemy bounces into another enemy, the second enemy will also take damage.
* When an enemy bounces off of Isaac, there's a 50% chance that Isaac won't receive contact damage.
* Additionally grants a 50% chance for projectiles to bounce off of Isaac without taking damage.

## Notes

* The damage enemies receive when they get bounced into a wall or an obstacle is equal to `8 + 2 * floor`.
	+ The same damage value applies when an enemy gets bounced into by another enemy.
* Enemies that don't deal contact damage cannot be bounced off.
* Bounced off projectiles deal a flat damage that doesn't scale with the current floor or Isaac's stats. This damage is usually 6, but can slightly vary depending on the enemy that shot the projectile.
	+ Lasers cannot be bounced off.
* The bouncing effect also works against Fire Places and spiked enemies such as Poky, Slide, and Grudge, granting a chance to avoid unintentional damage.
* Isaac can also bounce off Fly Bombs spawned by Blasters and even deny damage from their explosion.
* Bombs and Troll Bombs cannot be bounced off.
* Belly Jelly can prevent  Tainted Jacob from being turned into his Lost form by Dark Esau.

## Synergies

* : Retains the chance to bounce enemies while preventing damage simultaneously.
* / : Can be used as a powerful offensive item since Isaac can still bounce off enemies while invincible.
* /  / : Offers an additional chance to negate damage.
* : The bouncing effect works while Isaac is invincible.
* : The active item will still be activated if Belly Jelly blocks damage.
* : Allows Isaac to bounce enemies and poison them at the same time, with a decent chance to get a lot more health back in the form of Black Hearts than originally spent.

## Trivia

* This item can be considered a direct upgrade to , as the chances to deny projectile damage are equal, but Belly Jelly additionally works with contact damage, unlike Infamy.
* Belly Jelly is just the brand of jelly beans Jelly Belly**®,** but the words are flipped. Given the game's theme, this also might be a reference to the jelly spread on the belly before an ultrasound.
* The costume given by this item is identical to  and .
* Using the Spindown Dice on this item turns it into Glitched Crown.
Black Market

**Black Markets** are unique shops that can be accessed through a Crawl Space. Black Markets are 2 rooms wide. The left side of the Black Market contains a door back to the crawlspace and a trapdoor or beam of light to the next floor (including the Dark Room or Chest, even if they haven't been unlocked yet). The center of the room contains several items from the Shop pool that can all be bought for 1 Red Heart container.  Although these will not be Devil Room items, they still count as Devil deals for Angel Room generation and unlocking  Azazel.  This is no longer the case, and Isaac can buy items from the Black Market without affecting the spawn chances of Angel rooms. The rest of the room will be strewn about with Shopkeepers, pickups, and various Beggars and machines.

Telepills and  have a very small chance to teleport you to the Black Market, but there will be no door exiting back to a Crawl Space. This means that without another way to teleport, the player will be forced to proceed to the next level, like in an I AM ERROR Room.

## Variations

The following room maps were made using Basement Renovator for cleaner viewing; note that all Urns you see will be Skulls when encountered in-game. Additionally, the door to the crawlspace will close if there are enemies in the room, but the trapdoor will always be open.

## Notes

* Exiting the Black Market through the beam of light in Chest or Dark Room causes the floor to restart (in a similar fashion to ), as there are no floors further than these two. This can come in handy to gather a lot of items. The same applies to I AM ERROR.
	+ Black Markets and I AM ERROR can no longer be accessed in The Chest or Dark Room.
* Black Markets and I AM ERROR can be found in The Void. Using the trapdoor causes the floor to restart (in a similar fashion to ).
	+ Players can no longer access the Black Market through the wall glitch. However, it is still possible to access the Black Market using the glitch via special circumstances including having Ipecac and The Inner Eye.
* The Lost can take items from the Black Market for free, just like with regular devil deals.
	+ The Lost can take only one item from each selection of items. When an item is taken, the others disappear.
	+ If a Black Market is found in the Mirrored World and is populated using a  Shop Restock Machine, it will follow the rules of the non-mirrored character. Despite playing as The Lost in this area, multiple items can be purchased, and health will be deducted from the non-mirrored character, possibly resulting in death.
* When playing as  Keeper, the items are sold for money instead, making it no different from a regular Shop.
* When two crawl spaces lead to a Black Market in the same floor, they lead to the same Black Market.
* During the Ascent, crawlspaces with Black Markets lead to an I AM ERROR room instead.

## Trivia

* In the game files, every Black Market room is named "# - The Black Market (Racist Placeholder)", which can be seen with the "Debug 5" command.
Blind Rage

**Blind Rage** is an unlockable trinket added in *The Binding of Isaac: Afterbirth*.

## Effect

* Doubles the invincibility frames Isaac gets after getting hit.

## Notes

* This item makes it possible to use the Blood Donation Machine twice without taking damage the second time.
* This item makes it possible to use the Devil Beggar three times without taking damage the second and third times.
* The invicibility frames also get doubled when effects such as  are triggered, making it very useful for  The Lost.

## Synergies

* / Golden Trinket/: Each effect/trinket copy stacks lengthening the duration of invincibility frames per stack.

## Trivia

* This trinket refers to Samson being blinded after revealing his weakness to Delilah.
Bone Spurs

**Bone Spurs** is an unlockable passive item added in *The Binding of Isaac: Repentance*.

## Effects

* Enemies spawn 1-2 floating bones on death, which block enemy shots and damage/repel enemies that touch them.
	+ Bones block 2 shots and/or deals 2 ticks of damage before breaking.
	+ Bones deal contact damage equal to Isaac's damage in the moment they were created.

## Notes

* Bone particles will be created whenever Isaac shoots, though this is purely visual.
* Because the bones deal contact damage equal to Isaac's damage in the moment they were created, if the damage stat was changed, the bones that were already present on the screen will use Isaac's old damage stat.

## Synergies

* : Doubles the bones' size and damage.
* : Boosts the bones' damage while spinning even though there's no visual tell of the effect.

## Interactions

* Ace Cards: Turning enemies into pickups doesn't spawn bones.
* /: Enemies that are turned into poop don't spawn bones.

## Trivia

* A bone spur is a bony growth that often occurs close to joints and can have a multitude of causes from joint damage from osteoarthritis to excessive overuse of said joints.
Arcade

**Arcades** are special rooms that can only spawn on an even-numbered floor (Basement II, Caves II, Depths II, Womb II) if you have 5 coins or more when you leave the previous floor. Arcades require one coin to be opened. They can be replaced with a Vault if Isaac is carrying two keys or more.

* Arcades cannot spawn on XL floors.
	+ Unless it is on an alt path floor.
* Arcades can spawn on the first floor of the alternate chapters (Downpour I, Mines I, Mausoleum I, Corpse I).

An arcade can contain:

* A Slot Machine, a Shell Game, and a Blood Donation Machine
* Two Blood Donation Machines, a Beggar, a Devil Beggar, and a Key Master
* A Slot Machine, a Blood Donation Machine, and a Fortune Telling Machine
* A Donation Machine and a Blood Donation Machine
* A Beggar, a Shell Game, a Devil Beggar, and a Blood Donation Machine
* A Slot Machine, a Donation Machine, and a Blood Donation Machine
* A Bed, a Key Master, and 3 hanging dead Shopkeepers.
* Donation Machine, 2 Blood Donation Machines, 3 Fortune Telling Machines, and 4 Slot Machines.
* Crane Game, a Shell Game, a Blood Donation Machine, and a Rotten Beggar

In addition, the Arcade usually also has one or more random pickups on entry.

## Layouts

* (Rare)
* (Rare)
* (Rare)
* (Rare)
* (Extremely Rare)
* (Rare)
* (Rare)
* (Rare)
* (Rare)
* (Rare)

The odds of the following machines/beggars spawning in any given Arcade are:

* Blood Donation Machine: ~68.23% (13.1/19.2)
* Slot Machine/Shell Game: ~57.81% (11.1/19.2)
* Fortune Teller: ~5.73% (1.1/19.2)
* (Devil) Beggar: ~15.63% (3/19.2)
* Key Master: ~10.42% (2/19.2)
* Donation Machine: ~11.46% (2.2/19.2)
* Crane Game machine : *unknown*

## Unlockable Achievements

* A Gamekid - Visit 10 **Arcades**.

* The D4 - Blow up 30 Slot Machine.

## Trivia

* The posters that can appear on the arcade's walls are pictures of games that Edmund McMillen has worked on, such as Gish, Super Meat Boy, and Time Fcuk.
* In the original Binding of Isaac, the arcade's icon was a 6-sided dice. In Rebirth, this icon was changed to a joystick.