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Revision as of 23:19, 18 May 2021
Monsters refers to the many antagonistic creatures and entities the player will encounter throughout the game.
This article is incomplete. Please help to improve it, or discuss the issue on the talk page.
Issues: Is missing multiple Repentance enemies. |
Most monsters (with few exceptions) will damage Isaac by either touching him or shooting him with projectiles. Less frequently, monsters will spawn additional, lesser monsters, spread creep, or attempt to affect the player's movement. Along with the more common variety of monsters, champion versions can be found lurking about; These monsters are often like their common counterparts, but have a color tint or size change and drop basic pickups on death. There are also champion versions of most bosses.
There are 196 naturally spawning monsters in total. 40 of them were added in Afterbirth and 21 were added in Afterbirth † (13 were added in Booster Packs). Almost all of these naturally spawning entities are featured in the Bestiary.
Monster List
Error: The given entity ("Swarm Fly") does not exist.Error: The given entity ("Fartigan") does not exist.Error: The given entity ("Floating Host") does not exist.Entity | ID | Description |
---|---|---|
Gaper |
10.1 | Walks towards Isaac, dealing contact damage. Usually turns into a Pacer or a Gusher upon death. |
Frowning Gaper |
10.0 | Walks towards Isaac, dealing contact damage. They start out with their eyes closed, but when they gain line of sight with Isaac, their eyes open and they permanently move faster. Usually turns into a Pacer or with a small chance a Gusher upon death. |
Flaming Gaper |
10.2 | Walks towards Isaac, dealing contact damage. Usually turns into a Pacer or Gusher upon death. |
Cyclopia |
284.0 | Walks towards Isaac, dealing contact damage and leaving behind a short-lasting trail of damaging Red Creep. Occasionally shoots a blood shot towards Isaac. |
Deep Gaper |
811.0 | Emerges from the floor once all previous enemies have been killed, then proceeds to chase Isaac. Deals contact damage. |
Blurb |
813.0 | Walks slowly towards Isaac, dealing contact damage. After taking some damage or getting close to Isaac, it fires a chaotic burst of tears at him and chases him more quickly. Can turn into a Pacer or Gusher upon death. |
Gurgle |
87.0 | Walks towards Isaac, dealing contact damage and periodically firing Ipecac shots at him; they are immune to this explosion, but other enemies are not. Can turn into a Splasher upon death. |
Crackle |
87.1 | Walks toward Isaac, dealing contact damage and spitting fireballs that create lines of fire in the cardinal directions on impact. |
Nulls |
252.0 | Walks towards Isaac, dealing contact damage. Upon getting near Isaac, it will open its eyes, though its speed doesn't change. Fades into and out of visibility. |
Blue Gaper |
297.0 | Walks towards Isaac, dealing contact damage. |
Wraith |
807.0 | Walks toward Isaac, dealing contact damage. They are invisible and can only be seen through the reflection they cast in the water, or the ripples they make as they walk. |
Greed Gaper |
299.0 | Walks towards Isaac, dealing contact damage. |
Rotten Gaper |
10.3 | Walks toward Isaac, dealing contact damage. Its behavior varies slightly depending on its facial expression. |
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. |
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. |
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. |
Faceless |
827.0 | Wanders around the room, rarely firing a radial burst of six shots. Chases Isaac and fires shots more frequently after taking damage. |
Exorcist |
832.0 | Summons The Heretic before transforming into Fanatics. |
Fanatic |
832.1 | Transformed into from Exorcists. Chases Isaac and occasionally fires two purple, rotating shots. |
Tainted Faceless |
827.1 | Wanders around the room, rarely firing a radial burst of six shots. Chases Isaac and fires shots very frequently after taking damage. |
Dump |
876.0 | Slides toward Isaac, leaving a trail of slippery brown creep. After taking enough damage, its head slides off and quickly bounces around the room and its body spews out brown shots until it empties. |
Dump Head |
876.1 | Quickly slides toward Isaac, leaving a trail of slippery brown creep. Can spawn on its own or be created by a Dump after it takes enough damage. |
Pacer |
11.1 | Walks aimlessly around the room. |
Gusher |
11.0 | Walks aimlessly around the room, occasionally firing a short-ranged blood shot. |
Level 2 Gusher |
850.2 | Runs aimlessly around the room, spitting up Small Maggots. |
Splasher |
238.0 | Walks aimlessly around the room, firing Ipecac shots in random directions. |
Black Globin's Body |
280.0 | Walks aimlessly around the room, occasionally spawning spiders. |
Horf |
12.0 | Stationary enemy that fires a medium-ranged blood shot at Isaac when he gets in range of them. |
Sub Horf |
812.0 | Stationary enemy that spins and fires shots while being moved around or knocked back. |
Tainted Sub Horf |
812.1 | Will only shoot when hit. Takes heavy knockback and rotates when hit. Shoots a lot faster and has bigger projectiles than its normal variant. |
Psychic Horf |
248.0 | Stationary enemy that fires a homing shot at Isaac when he gets in range of them. |
Necro |
828.0 | Stationary enemy that summons unlimited-ranged bones to attack Isaac. |
Level 2 Horf |
850.1 | Slowly floats toward Isaac, spitting Small Maggots at him. |
Fly |
13.0 | Hovers in place. Does not deal contact damage and is harmless, but can turn into Pooters if they stay around Poop. |
Attack Fly |
18.0 | Red fly that follows Isaac and deals contact damage. |
Dart Fly |
256.0 | Flies towards Isaac and attempts to predict his movements. Deals contact damage. |
Ring Fly |
222.0 | Gathers with any other Ring Flies in the room. These flies orbit around themselves while following Isaac. Deals contact damage. |
Army Fly |
868.0 | Chases Isaac, moving along the cardinal directions. Forms a line with other Army Flies in the room. Deals contact damage. |
Hush Fly |
296.0 | Gathers with other Hush Flies to form certain patterns. If spawned by Hush, can chase Isaac or orbit Hush. Deals contact damage. |
Willo |
808.0 | Flies in a circle around Isaac (in formation with other Willos if available), keeping an exact distance away from him. One Willo at a time will occasionally light up and fire a shot at Isaac. |
Moter |
80.0 | Follows Isaac, similar to Attack Flies. Deals contact damage. Splits into 2 Attack Flies upon death. |
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. |
Ultra Famine Fly |
951.11 | Charges at Isaac at a delay. Deals contact damage. Spawned by Ultra Famine. |
Ultra Pestilence Fly |
951.21 | Flies in swarms around Ultra Pestilence, blocking shots and dealing contact damage. |
Fly Bomb |
819.0 | Flies toward Isaac, circling around him as it does. Turn into a tiny Bomb upon death. |
Eternal Fly Bomb |
819.1 | Orbits Boom Flies spawned by The Horny Boys. Once its Boom Fly has been killed, turns into a tiny Bomb. |
Sucker |
61.0 | Flies slowly towards Isaac, exploding into 4 shots in the cardinal directions upon death. |
Spit |
61.1 | Flies slowly towards Isaac, firing an Ipecac shot towards Isaac upon death. |
Ink |
61.3 | Flies slowly towards Isaac. Fires four shots in the ordinal directions and leaves a puddle of slowing Black Creep upon death. |
Soul Sucker |
61.2 | Flies slowly towards Isaac. Spawns a vortex that fires four Brimstone beams in the cardinal directions upon death. |
Tainted Sucker |
61.7 | Flies slowly towards Isaac. Upon death, fires a radial burst of six blood shots that each also fires a radial burst of six blood shots. |
Bulb |
61.5 | Flies in erratic, angled movements toward Isaac if his active item has charges; on contact, they drain up to 2 charges, but never deal contact damage. If he has no active item, or no charges, they wander around the room aimlessly. |
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. |
Pooter |
14.0 | Slowly drifts toward Isaac, occasionally firing a single blood shot at him. Does not deal contact damage. |
Super Pooter |
14.1 | Slowly drifts toward Isaac, occasionally firing two blood shots in a V-formation at him. Does not deal contact damage. |
Tainted Pooter |
14.2 | Slowly drifts toward Isaac, occasionally firing four blood shots at him that split into two smaller ones when they hit a wall or obstacle. |
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. |
Clotty |
15.0 | Randomly wanders around the room, firing 4 blood shots in the cardinal directions. |
Grilled Clotty |
15.3 | Quickly and randomly wanders around the room, firing four flame shots in the cardinal directions at a slight angle. |
Cloggy |
872.0 | Randomly wanders around the room, firing four curved brown shots in the cardinal directions. These shots alternate between rotating clockwise and counterclockwise with each shot. |
Clot |
15.1 | Randomly wanders around the room, firing 4 tar shots in the ordinal directions. |
I.Blob |
15.2 | Randomly wanders around the room, firing 8 shots in all directions. |
Mulligan |
16.0 | Walks around the room, avoiding Isaac. Upon death, spawns several flies, which can be Flies, Attack Flies, and/or Pooters. Can self-detonate and launch four projectiles in the cardinal directions while still releasing flies. |
Mulligoon |
16.1 | Walks around the room, avoiding Isaac. Upon death, spawns a Troll Bomb and fires four shots in the ordinal directions. Can self-detonate, spawn a Troll bomb, and launch eight projectiles in all directions. |
Mulliboom |
16.2 | Chases Isaac and explodes upon death or upon touching Isaac. The explosion deals a half-heart of damage instead of the regular full heart. |
Hive |
22.0 | Wanders around the room, avoiding Isaac and spawning Attack Flies if he gets close. Spawns a large number of flies on death, which can be Flies, Attack Flies, and/or Pooters. |
Drowned Hive |
22.1 | Wanders around the room, avoiding Isaac and spawning Drowned Chargers if he gets close. Spawns 0-2 Drowned Chargers upon death. |
Prey |
817.0 | Wanders around the room, avoiding Isaac and spawning Small Leeches if he gets close. Spawns 3 Small Leeches upon death. |
Nest |
205.0 | Wanders around the room, avoiding Isaac and spawning Spiders if he gets close. Spawns a Big Spider or Trite upon death. |
Leper |
310.0 | Alternating between walking towards and running away from Isaac. Releases a Leper Flesh each time it takes enough damage. At low health, constantly chases Isaac and leaves behind damaging red creep. Spawns a Leper Flesh and Gusher upon death. |
Leper Flesh |
310.1 | Floats slowly toward Isaac and fires a predictive projectile at him upon death. |
Holy Mulligan |
22.2 | Wanders around the room, avoiding Isaac and spawning Angelic Baby (small) if he gets close. Spawns 1-2 Embryos upon death. |
Mullighoul |
817.1 | Wanders around the room, avoiding Isaac and spawning Willos if he gets close. Spawns 1-2 Willos upon death. |
Tainted Mulligan |
22.3 | Wanders around the room, avoiding Isaac and spawning 6 Ring Flies if he gets close. Spawns a plethora of fly enemies upon death. |
Bouncer |
822.0 | Wanders around the room, avoiding Isaac. If Isaac stays close to one for long enough, it inflates and starts chasing him, gaining a chance to deflect shots and causing it to explode into lingering blood shots on death. |
Danny |
820.0 | Walks toward Isaac and spits chaotic bursts of rocks at him, some of which may be Rock Spiders. |
Coal Boy |
820.1 | Walks toward Isaac and spits hot coals at him, some of which may be Coal Spiders. |
Blaster |
821.0 | Slowly wanders around and occasionally shoots Fly Bombs at Isaac. |
Maggot |
21.0 | Aimlessly moves around the room, dealing contact damage. |
Small Maggot |
853.0 | Slowly crawls toward Isaac, dealing contact damage. |
Charger |
23.0 | Slowly moves around the room, charging at Isaac when he gets in its line of sight. |
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. |
Carrion Princess |
23.3 | Slowly moves around the room, charging at Isaac when he lines up diagonally with it. Can only be damaged by hitting its tail. |
Small Leech |
810.0 | Chases Isaac continuously, not stopping at walls. Able to swim over gaps. |
Drowned Charger |
23.1 | Slowly moves around the room, charging at Isaac when he gets in its line of sight. Explodes into four blood shots in the ordinal directions upon death. |
Elleech |
855.1 | Slowly moves around the room. After Isaac gets in its line of sight, continuously charges at him in the closest cardinal direction. |
Dank Charger |
23.2 | Slowly moves around the room, launching itself at Isaac if he gets in its line of sight. Bounces off of walls and leaves a trail of slowing Black Creep while charging. |
My Shadow |
23.0.1 | Charges at enemies when in its line of sight, dealing contact damage. Will always spawn friendly via My Shadow. |
Blood Puppy |
802.0 | Quickly moves around the room, attacking and charging at other monsters and Isaac when they get in its line of sight. |
Spitty |
31.0 | Slowly moves around the room, occasionally firing a single blood shot forward. |
Tainted Spitty |
31.1 | Slowly moves around the room, firing chaotic bursts of blood shots in all directions and occasionally spitting a line of blood shots in the direction it's facing. Fires two rotating rings of blood shots upon death. |
Conjoined Spitty |
243.0 | Slowly moves around the room, occasionally firing a blood shot from both ends of its body. |
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. |
Dank Globin |
24.2 | Chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into a pile of goo, spawns a Spider, and leaves a puddle of slowing Black Creep. Will regenerate after a short time if not killed quickly. Leaves another puddle of Black Creep upon death. |
Black Globin |
278.0 | Chases Isaac, dealing a full heart of contact damage and launching Spiders towards Isaac whenever it takes damage. Spawns a Spider, a Black Globin's Head, and a Black Globin's Body upon death. |
Cursed Globin |
24.3 | Chases Isaac, dealing a full heart of contact damage. Upon taking enough damage, it collapses into 1-2 piles of goo, each of which can be killed and regenerate after a short period of time if not killed quickly. These goo piles have less health the more times the Cursed Globin splits. |
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. |
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. |
Boom Fly |
25.0 | Flies across the room in straight diagonal lines, dealing contact damage. Explodes upon death. |
Red Boom Fly |
25.1 | Flies across the room in straight diagonal lines, dealing contact damage. Creates a ring of 6 blood shots upon death. |
Drowned Boom Fly |
25.2 | Flies across the room in straight diagonal lines, dealing contact damage. Upon death, explodes and fires four blood shots in the cardinal directions. Also has a chance to spawn a Drowned Charger upon death. |
Dragon Fly |
25.3.0 | Flies across the room in straight diagonal lines, dealing contact damage. Upon death, creates four lines of fire in the cardinal directions; the fire nearly spans the length of an entire normal-sized room. |
Dragon Fly X |
25.3.1 | Flies across the room in straight diagonal lines, dealing contact damage. Upon death, creates four lines of fire in the ordinal directions; the fire nearly spans the length of an entire normal-sized room. |
Bone Fly |
25.4 | Flies across the room in straight diagonal lines, dealing contact damage. Fires bones at Isaac if he lines up with it in the cardinal directions. Fires a radial burst of 3 bones upon death. |
Sick Boom Fly |
25.5 | Flies across the room in straight diagonal lines, dealing contact damage and trailing poisonous gas. Upon death, explodes into a gas cloud and fires a ring of 6 green shots. |
Tainted Boom Fly |
25.6 | Flies across the room in straight diagonal lines, dealing contact damage. Upon death, it glows brightly, warning that it is about to explode; this explosion sends 4 lines of further explosions in the cardinal directions, which span the length of the room. |
Maw |
26.0 | Slowly floats towards Isaac, firing a blood shot at him when he is in their range. |
Red Maw |
26.1 | Floats quickly towards Isaac and releases 4 blood shots in the cardinal directions upon death. |
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. |
Host |
27.0 | 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 in a spread and lower its head again. |
Red Host |
27.1 | Stationary enemy that can be damaged even when its head is lowered. Fire 5 spread blood shots when it raises its head. |
Hard Host |
27.3 | Stationary enemy that is normally invulnerable. Raises its head up when Isaac gets close, revealing a fleshy stem that can be damaged. Shortly after raising its head, it slams its head down and fires a rock wave towards Isaac. |
Mobile Host |
204.0 | Acts like the Host, but follows Isaac and deals contact damage. |
Flesh Mobile Host |
247.0 | Acts like the Red Host, but follows Isaac and deals contact damage. |
Hopper |
29.0 | Slowly hops around the room, doing contact damage. Can turn into a Flaming Hopper by jumping into Fire Places or other fires. |
Flaming Hopper |
54.0 | Quickly hops around the room, doing contact damage. Covers a larger distance than the regular Hopper. |
Leaper |
34.0 | Hops around the room, doing contact damage. Occasionally jumps high into the air, dropping down onto Isaac's position while firing 4 blood shots in the cardinal directions. |
Sticky Leaper |
34.1 | Hops around the room, dealing contact damage. Occasionally jumps high into the air, dropping down onto Isaac's position while creating a chaotic burst of tar shots in all directions and a puddle of slowing black creep. |
Eggy |
29.2 | Hops aimlessly around the room, spawning slowing white creep wherever it hops. Spawns a group of Swarm Spiders upon death. |
Tainted Hopper |
29.3 | Jumps and twirls around the room, shooting 4 rings of projectiles that increase in size with each shot. |
Trite |
29.1 | Quickly leaps towards Isaac and deals contact damage. |
Ragling |
246.0 | Quickly leaps towards Isaac and deals contact damage. Randomly shoots two purple shots that orbit around it. |
Rag Man's Ragling |
246.1 | Quickly leaps towards Isaac and deals contact damage. Randomly shoots two purple shots that orbit around it. |
Blister |
303.0 | Slowly hops towards Isaac, occasionally spawning a Dark Ball. Spawns a Sack upon death. |
Boil |
30.0 | 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 |
30.1 | 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 |
30.2 | 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 |
298.0 | 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. |
Gush |
309.0 | Stationary, harmless enemy that continually creates slowing black creep. |
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. |
Walking Boil |
88.0 | Does not shrink or regenerate. Walks around aimlessly and fires multiple short-ranged blood projectiles in random directions. |
Walking Gut |
88.1 | Does not shrink or regenerate. Walks around aimlessly and fires Ipecac shots in random directions. |
Walking Sack |
88.2 | Does not shrink or regenerate. Walks around aimlessly and occasionally spawns Spiders. |
Brain |
32.0 | Slowly crawls around the room, leaving a trail of Red Creep. |
Poison Mind |
301.0 | Slowly crawls/floats around the room diagonally, leaving a trail of damaging green creep. Explodes upon death. |
Pon |
840.0 | Hops around the room, leaving damaging red creep wherever it lands. Upon death, its associated Brainless Knight dies with it. |
Black Globin's Head |
279.0 | Slides towards Isaac, leaving a trail of damaging Red Creep. |
Gyro |
824.0 | Rolls around like a wheel. Charges at Isaac when he is in line of sight, bouncing off of walls and obstacles as it does. |
Grilled Gyro |
824.1 | Rolls around like a wheel. Charges at Isaac when he is in line of sight, bouncing off of walls and obstacles and creating fires behind itself as it does. |
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. |
Mr. Red Maw |
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. |
Swinger |
216.0 | Slowly moves towards Isaac as its head swings around its base. Upon death, spawns a Maw or a Globin depending on which part is killed. |
Mr. Mine |
311.0 | Can only appear in pits. Attempts to launch itself at Isaac if he comes near. Occasionally burrows and pops up in another pit, and fires six shots in all directions upon death. |
Baby |
38.0 | Slowly floats towards Isaac and fires a blood shot at him. Occasionally teleports and reappears elsewhere. |
Angelic Baby |
38.1.0 | Slowly floats towards Isaac and fires three spread shots. Occasionally teleports and reappears elsewhere. |
Angelic Baby (small) |
38.1.1 | Slowly floats towards Isaac and fires a blood shot at him. Occasionally teleports and reappears elsewhere. Can only be spawned by Holy Mulligans. |
Wrinkly Baby |
38.3 | Dashes towards Isaac at high speed and fires three blood shots in his direction once stopped. |
Imp |
259.0 | Slowly drifts towards Isaac, frequently firing 5 blood shots in quick succession towards him. Tries to avoid Isaac's shots and occasionally teleports and reappears elsewhere. |
Baby Begotten |
883.0 | Floats toward Isaac, avoiding his shots. After getting close, fires a short Brimstone laser in the closest cardinal direction and propels itself away from him. |
Vis |
39.0 | Randomly wanders around the room. Pauses to charge and fire a Brimstone laser when Isaac gets in its line of sight. |
Double Vis |
39.1 | Randomly wanders around the room. Pauses to charge and fire a Brimstone laser which fires from both sides when Isaac gets in its line of sight. |
Chubber |
39.2 | Randomly wanders around the room. Pauses to fire a Charger that deals one heart of damage when Isaac gets in its line of sight. The Charger is invulnerable, blocks Isaac's tears, has limited range, and flies back to the Chubber. |
Scarred Double Vis |
39.3 | Randomly wanders around the room. Pauses to charge and fire a Brimstone laser which fires from all four cardinal sides when Isaac gets in its line of sight. |
Vis Versa |
836.0 | Randomly wanders around the room. Pauses to charge and fire a homing Brimstone laser when Isaac gets in its line of sight. |
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. |
Guts |
40.0 | Attaches itself to a wall or obstacle and rolls around it. |
Scarred Guts |
40.1 | Attaches itself to a wall or obstacle and rolls around it, leaving a trail of damaging Red Creep. |
Slog |
40.2 | Attaches itself to a wall or obstacle and rolls around it, charging at Isaac when he is in sight. |
Cyst |
862.0 | Attaches itself to a wall or obstacle and rolls around it, regularly firing blood shots at Isaac. |
Knight |
41.0 | Moves erratically around the room and charges towards Isaac when in line of sight. Can only be damaged from behind. |
Selfless Knight |
41.1 | Moves erratically around the room and charges towards Isaac very quickly when in line of sight. Can only be damaged from behind. |
Floating Knight |
254.0 | Behaves like the Knight but slower, and can fly over all obstacles. |
Bone Knight |
283.0 | Moves erratically around the room, charges toward Isaac when in line of sight, and leaves behind a short-lasting trail of damaging Red Creep. Can only be damaged from behind. |
Loose Knight |
41.2 | Moves erratically around the room, charges toward Isaac when in line of sight. When its health is depleted, it turns into a Brainless Knight and a Pon. |
Brainless Knight |
41.3 | Alternates between running around the room along the cardinal directions and aimlessly walking in circles. Charges at Isaac when in line of sight. Dies when its corresponding Pon dies. |
Black Knight |
41.4 | Moves erratically around the room, charges toward Isaac when in line of sight. Unleashes waves of fire in all cardinal directions upon charging into an obstacle. Shots that hit it from the front are deflected back at Isaac. |
Whipper |
834.0 | Runs around the room, sprinting at Isaac when he gets in its line of sight and lashing at him when it gets close. |
Snapper |
834.1 | Runs around the room, sprinting at Isaac when he gets in its line of sight and throwing out its whip when he gets in range. |
Flagellant |
834.2 | Runs around the room. When Isaac gets in its line of sight, continuously chases him and lashes its whip, occasionally deflecting Isaac’s shots. |
Dople |
53.0 | Mirrors Isaac's movements and fires blood shots at the same time as Isaac. Can be damaged by spikes. |
Evil Twin |
53.1 | Mirrors Isaac's movements and fires three spread blood shots at the same time as Isaac. Can fly over obstacles. |
Leech |
55.0 | Quickly charges towards Isaac when he gets in its line of sight. |
Kamikaze Leech |
55.1 | Quickly charges towards Isaac when he gets in its line of sight. Explodes upon death. |
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. |
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. |
Lump |
56.0 | Fires 3 spread blood shots at Isaac when he gets in its line of sight. Will burrow underground and reappear elsewhere after firing. |
Tar Boy |
307.0 | Fires a short-ranged spray of shots that leave behind slowing Black Creep. Occasionally burrows underground and reappears under any pools of black creep in the room. If Isaac stands on the Creep, the Tar Boy can fire shots straight upwards out of the Creep underneath Isaac/ send out a tentacle underneath Isaac. |
MemBrain |
57.0 | Slowly moves around the room, occasionally hopping and firing 8 large blood shots in all directions. Splits into 2 Brains upon death. |
Mama Guts |
57.1 | Slowly moves around the room, occasionally hopping and firing 8 large blood shots in all directions. Splits into 2 Guts upon death. |
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. |
Mega Clotty |
282.0 | Slowly moves around the room, occasionally hopping and either firing 6 blood shots in all directions, leaving a puddle of Red Creep, or spawning a Clotty or a collapsed Globin. Splits into two Clotties upon death. |
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. |
Para-Bite |
58.0 | Moves towards Isaac, dealing contact damage. Can burrow underground and reappear elsewhere. |
Scarred Para-Bite |
58.1 | Moves towards Isaac, dealing contact damage and firing a short-range blood shot at him. Can burrow underground and reappear elsewhere. |
Fred |
59.0 | Hops out of the ground and burrows elsewhere, firing 4 blood shots in the cardinal directions. Occasionally fires red Ipecac shots at Isaac. |
Eye |
60.0 | Slowly turns towards Isaac and fires a Technology laser at Isaac if he stands still or is too slow. |
Bloodshot Eye |
60.1 | Slowly turns towards Isaac and fires a Brimstone beam at Isaac if he stands still or is too slow. |
Holy Eye |
60.2 | Rapidly summons several beams of light around Isaac every few seconds. |
Embryo |
77.0 | Aimlessly hops around the room, dealing contact damage. |
Spider |
85.0 | Erratically moves around the room. If Isaac gets close to it, it chases him, trying to deal contact damage. |
Strider |
814.0 | Erratically swims around the room. If it sees Isaac, it chases him, trying to deal contact damage. |
Swarm Spider |
884.0 | Very erratically hops toward Isaac in large groups, dealing contact damage. |
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. |
Rock Spider |
818.0 | Slowly crawls around the room. If it sees Isaac, it crawls at him, trying to deal contact damage. Turns into a Spider upon death. Turns into a Coal Spider if it touches fire. |
Tinted Rock Spider |
818.1 | Quickly crawls around the room. If it sees Isaac, it crawls at him, trying to deal contact damage. Turns into a Soul Heart upon death. Can only spawn by breaking tinted rocks on Mines or Ashpit. |
Coal Spider |
818.2 | Quickly crawls around the room. If it sees Isaac, it crawls at him, trying to deal contact damage. Turns into a hot coal upon death that blocks shots and deals contact damage, but can be destroyed. |
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. |
Buttlicker |
89.0 | Can start attached to other Buttlickers and erratically moves around the room, similar to Larry Jr.. |
Butt Slicker |
878.0 | Moves erratically around the room unless attached to another Butt Slicker. Grouped Butt Slickers drag themselves towards Isaac, and when an individual is killed they leave black creep, and shoot out black projectiles. The amount of projectiles released and the size of the pool of Black Creep is determined by the amount of Butt Slickers attached. |
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. |
Swarmer |
91.0 | Slowly floats around the room, spawning several Attack Flies. Spawns Pooters upon taking damage. Spawns a Boom Fly upon death. |
Mask + Heart |
93.0 | The Mask is invulnerable and moves around erratically, charging at Isaac when he lines up with it. The Heart avoids Isaac and fires 4 blood shots in the cardinal directions when Isaac gets near. Killing the Heart will automatically kill the Mask. |
Mask II + 1/2 Heart |
93.1 | The Mask is invulnerable and moves around erratically, charging at Isaac when he lines up with it. The Heart avoids Isaac and fires 4 blood shots in the ordinal directions when Isaac gets near. Killing the Heart will automatically kill the Mask. If there are more than one 1/2 Heart in the room, they will fire blood shots between each other. |
Baby Long Legs |
206.0 | Runs away from Isaac and frequently spawns Spiders. |
Small Baby Long Legs |
206.1 | Runs away from Isaac and occasionally spawns Sacks. |
Crazy Long Legs |
207.0 | Chases Isaac, dealing touch damage. Occasionally stops to spit 8 blood shots in all directions. |
Small Crazy Long Legs |
207.1 | Chases Isaac, dealing touch damage. Occasionally stops to spit 4 blood shots in the diagonal directions. |
Fatty |
208.0 | Slowly walks towards Isaac. Occasionally farts, which pushes Isaac and adjacent enemies away. |
Flaming Fatty |
208.2 | Slowly walks towards Isaac. Occasionally farts, which pushes Isaac and adjacent enemies away and spawns a damaging flame. Has a chance to leave behind a damaging flame upon death. |
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 upon death. |
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 upon death. |
Blubber |
210.0 | Walks around aimlessly and randomly spews a cluster of blood shots in all directions. Has a chance to turn into a Half Sack when killed. |
Half Sack |
211.0 | Wanders around aimlessly and leaves a trail of Red Creep. |
Conjoined Fatty |
257.0 | 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. |
Blue Conjoined Fatty |
257.1 | Slowly walks towards Isaac and occasionally farts out a homing Ipecac shot at Isaac. |
Peeping Fatty |
835.0 | Has two indestructible Peeping Fatty Eyes that are out of their sockets but attached by muscles. Wanders around the room randomly, or toward Isaac if its eyes see him. Occasionally farts and fires a radial burst of 6 blood shots. |
Bloaty |
879.0 | Lumbers around, occasionally spitting green shots and a line of damaging green creep in a random direction. |
Bubbles |
806.0 | Slowly walks towards Isaac, firing back shots upon taking damage. Occasionally farts, which pushes Isaac and adjacent enemies away and creates a chaotic burst of shots. Creates a geyser of water shots upon death. |
Shady |
888.0 | Walks slowly toward Isaac, occasionally firing a shot that creates shots perpendicular to itself while traveling and splits into a ring of shots upon hitting a wall or obstacle. Also occasionally jumps, creating lines of explosions in the cardinal directions. One of the few enemies that utilize Damage Scaling. |
Quakey |
823.0 | Walks slowly toward Isaac, occasionally attempting to jump on Isaac, shooting out 8 rock shots when it hits the ground and causing rocks to fall from the ceiling. |
Vis Fatty |
886.0 | Spawns with a Fetal Demon attached to it and slowly walks towards Isaac. Will occasionally fart, briefly pushing the demon away and spawning creep around itself and the demon. If the demon is killed first, the Fatty will shoot out Brimstone in the diagonal direction closest to Isaac. It will then fly around the room diagonally, bumping off of walls and tall blocks all while continuously firing Brimstone behind it. |
Fetal Demon |
886.1 | Usually encountered tethered to Vis Fatties. When tethered it makes short lunges towards Isaac if he gets close. If the Vis Fatty is killed or when encountered alone it will chase Isaac similarly to Gemini's Suture. |
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. |
Stoney |
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 Stoney |
302.10 | Chases Isaac and shoots 4 tears vertically and diagonally like a Cross Stone Shooter. Dies when the room is cleared. Only appears in Aprils Fool (challenge #32) as replacements to regular Stoneys. |
Death's Head |
212.0 | Invulnerable enemy that moves diagonally around the room, dealing contact damage. Dies when the room is cleared. |
Dank Death's Head |
212.1 | Moves diagonally around the room, dealing contact damage. Needs to be killed to complete the room. |
Flesh Death's Head |
286.0 | Moves diagonally around the room, dealing contact damage. Releases 6 blood shots in all directions upon death. Can be killed, but also dies when the room is cleared. |
Cursed Death's Head |
212.2 | Invulnerable enemy that moves diagonally around the room, dealing contact damage. If Isaac enters its purple aura, he will be inflicted with fear and be temporarily unable to shoot. Dies when the room is cleared. |
Brimstone Death's Head |
212.3 | Invulnerable enemy that moves diagonally around the room, pausing to fire a Brimstone laser when Isaac lines up with it in the cardinal directions. Dies when the room is cleared. |
Dusty Death's Head |
887.0 | Invulnerable enemy that moves across the room in a waving motion in large quantities. Dies when the room is cleared. |
Redskull |
212.4 | Moves diagonally around the room, creating a ring of fire around itself if Isaac gets close to it. Can be killed, but also dies when the room is cleared. |
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. |
Mom's Dead Hand |
287.0 | Falls from the ceiling. Upon landing, it spawns several rock waves that travel outwards. Spawns several spiders upon death. Entering a room containing Mom's Dead Hand will warn Isaac with Mom's laugh. |
Level 2 Fly |
214.0 | Flies toward Isaac erratically, dealing contact damage. |
Full Fly |
249.0 | Flies toward Isaac erratically, dealing contact damage. Releases 6 bullets in all directions upon death. |
Level 2 Willo |
838.0 | Orbits enemies and shoots tears at Isaac. If the enemy it is orbiting dies, it will orbit another enemy. However, if all enemies are dead, it will chase Isaac, while still occasionally shooting at Isaac. |
Level 2 Spider |
215.0 | Crawls around the room erratically, following Isaac and dealing contact damage. Can jump small distances. |
Ticking Spider |
250.0 | Crawls around the room erratically, following Isaac and dealing contact damage. Can jump small distances. Explodes upon death. |
Migraine |
869.0 | Crawls around the room erratically, following Isaac and dealing contact damage. Can jump small distances. Releases multiple Troll Bombs upon death. |
Dip |
217.0 | Slowly dashes in random directions, dealing contact damage. |
Corn |
217.1 | Quickly dashes in random directions, dealing contact damage. |
Big Corn |
217.3 | Quickly dashes in random directions, dealing contact damage. Shoots one piece of corn upon death. |
Brownie Corn |
217.2 | Quickly dashes in random directions, dealing contact damage. |
Drip |
870.0 | Quickly rolls around in diagonal directions, dealing contact damage. |
Wizoob |
219.0 | Disappears, then appears near Isaac and spits a cluster of spectral tears at him. |
Red Ghost |
285.0 | Disappears, then reappears near Isaac and fires a brimstone laser. |
Squirt |
220.0 | Dashes towards Isaac and deals contact damage. Spawns 2 Dips upon death. |
Dank Squirt |
220.1 | Dashes towards Isaac and deals contact damage, creating slowing black creep. Spawns 2 Clots upon death. |
Splurt |
871.0 | Dashes towards Isaac twice and deals contact damage. Spawns 2 Drips upon death. |
Hardy |
826.0 | Dashes toward Isaac and deals contact damage creating rock projectiles when it hits a wall/obstacle. It spawns more rock projectiles the more times it crashes into obstacles, dying after doing so a third time. |
Cod Worm |
221.0 | Stationary enemy that hides in a shell and spews a burst of blood shots if shot at. Only vulnerable when it pops its head out. |
Oob |
224.0 | When Isaac lines up with it horizontally, it charges across the room once. When Isaac is not horizontal to it, it spawns Brains. |
Black Maw |
225.0 | When Isaac lines up with it horizontally, it charges in his direction and then doubles back, charging back to its original position. When Isaac is not horizontal to it, it spawns Leeches. Explodes when it dies. |
Skinny |
226.0 | Slowly walks towards Isaac, leaving short-lasting Red Creep behind itself. |
Rotty |
226.1 | Slowly walks towards Isaac, leaving short-lasting Red Creep behind itself. Spawns a Bony or two Attack Flies upon death. |
Crispy |
226.2 | Slowly walks towards Isaac, but increases in speed as they take damage. Constantly passively takes damage. |
Bony |
227.0 | Wanders around the room and throws a bone at Isaac when he is in sight. |
Black Bony |
277.0 | Wanders around the room and throws three bones in a row at Isaac when he is in sight. Explodes upon death. |
Revenant |
841.0 | Slowly wanders around the room, stopping to fire a large line of fire at the player. |
Quad Revenant |
841.1 | Wanders around the room slowly, stopping to fire lines of flames in the cardinal or ordinal directions, rotating in an attempt to hit Isaac. |
Big Bony |
830.0 | Walks slowly toward Isaac, and will occasionally fire a bone that bounces around the room for a few moments. The bone can be broken if shot enough. |
Holy Bony |
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. |
Homunculus |
228.0 | Starts attached to the wall or an obstacle. After a while, it detaches, shooting 6 blood shots in all directions, leaving a puddle of Red Creep and chasing Isaac. If it dies while still attached, it will still leave a puddle of Red Creep. |
Begotten |
251.0 | Starts attached to the wall or an obstacle. After a while, it detaches, firing 6 blood shots in all directions, turning the room dark, becoming invisible and chasing Isaac. Briefly becomes visible upon getting hit. |
Tumor |
229.0 | Moves around the room diagonally, occasionally firing 6 blood shots in all directions. Fires more often upon getting damaged. |
Psy Tumor |
253.0 | Moves around the room diagonally, occasionally firing 6 homing shots in all directions. Fires more often upon getting damaged. |
Camillo Jr. |
230.0 | Moves around the room diagonally, occasionally firing Technology lasers towards Isaac. Fires more often upon getting damaged. |
Planetoid |
229.1 | Moves around the room diagonally, occasionally firing blood shots that orbit itself. Fires more shots and has a chance to send its ring of shots outward upon taking damage. |
Poofer |
892.0 | Slowly floats toward Isaac, swells up and fire 6 blood shots in all directions upon taking damage. Explodes upon death, healing nearby enemies and leaving a big puddle of red creep. |
Unborn |
860.0 | Floats quickly towards Isaac, and occasionally teleports to another position near him. |
Nerve Ending |
231.0 | Static enemy which acts as a meat shield. |
Nerve Ending 2 |
231.1 | Static enemy which whips at Isaac if he gets too close. |
Bishop |
805.0 | Shields all enemies in the room, preventing them from taking damage. Fires shots in the cardinal directions when it takes damage. |
One Tooth |
234.0 | Follows Isaac and periodically dashes towards him when it gets close. Deals contact damage. |
Fat Bat |
258.0 | Slowly flies towards Isaac. Tries to align itself diagonally to Isaac and shoots at him when in that alignment. |
Gurgling |
237.0 | Charges towards Isaac when he lines up with them, leaving a trail of Red Creep and shooting 6 blood shots. |
Fly Trap |
873.0 | Floats towards Isaac, with 3 Attack Flies circling around it. Coughs up additional Attack Flies and releases gas to launch the Attack Flies outwards. |
Clickety Clack |
889.0 | Walks towards Isaac and turn into a pile of bones when killed. Regenerates a few seconds after killed. Will only despawn if all Clickety Clacks in the room are killed. |
Maze Roamer |
890.0 | Wanders around the room and shoots an eyeball at Isaac when he is in sight. Has a clone of itself on the other side of the room that mimics its movement and shots. If one dies, the other starts actively pursuing Isaac. |
Bombgagger |
844.0 | Spits up a Giga Bomb and runs away from it. |
Goat |
891.0 | Wanders around the room. Occasionally moves toward Isaac, either firing blood shots at him or charging if he lines up on either side of it. |
Black Goat |
891.1 | Wanders around the room. Occasionally moves toward Isaac, either firing blood shots at him or charging if he lines upon either side of it. Can also fire thin Brimstone lasers in the cardinal directions, along with all other Black Goats in the room. |
Cultist |
885.0 | Creates an indestructible, homing Purple Ball at the start of the room and follows it around, occasionally leaving it to revive enemies that have died in the current room. |
Blood Cultist |
885.1 | Wanders around the room and fires a line of blood shots and creep if Isaac is on either side of it. Can summons bone traps that temporarily ensnare Isaac if he walks into them. |
Grub |
239.0 | 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. |
Wall Creep |
240.0 | Crawls along walls to try to line up with Isaac and shoots three blood shots in a line. |
Blind Creep |
242.0 | Randomly crawls along walls and shoots three spread blood shots. |
The Thing |
304.0 | Crawls along a wall and attempts to line up with Isaac, then spits a line of damaging Red Creep. |
Soy Creep |
240.1 | Slowly crawls along walls to try to line up with Isaac and shoots a stream of shots seemingly affected by Soy Milk. |
Tainted Soy Creep |
240.3 | Slowly crawls along walls to try to line up with Isaac and shoots a 4 diagonal streams of Soy Milk shots. |
Rage Creep |
241.0 | Slowly crawls along walls to try to line up with Isaac and shoots a Brimstone laser. |
Round Worm |
244.0 | Pops out of the ground in random locations and spits a blood shot at Isaac if he is in sight. |
Tainted Round Worm |
244.2 | Pops out of the ground in random locations alongside several tail ends. The head fires a large blood shot that splits into a radial burst of 8 blood shots, while the tail ends shoot normal blood shots. |
Roundy |
276.0 | 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 |
289.0 | 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. |
Night Crawler |
255.0 | Pops out of the ground in random locations and fires four short-range shots that spiral outwards if Isaac is in sight. |
Tube Worm |
244.1 | Pops out of the ground in random locations and fires a long-range spray of arcing shots where Isaac will be. |
Tainted Tube Worm |
244.3 | Pops out of the ground in random locations, spitting 4 explosive shots towards Isaac. |
Fire Worm |
825.0 | Pops out of the ground in random locations in the lava and fires one flame at Isaac. |
Mole |
829.0 | Burrows towards Isaac and jumps out the ground to fire 3 blood shots at him. |
Tainted Mole |
829.1 | Dig towards Isaac and release a ring of rock waves. Fires 3 blood shots at Isaac 4 times. |
Lil' Haunt |
260.0 | Floats toward Isaac and occasionally fires a blood shot at him, predicting his movements. |
Polty |
816.0 | Picks up and throws rocks and props at Isaac. |
Kineti |
816.1 | Uses telekinesis to pick up and throw rocks and obstacles at Isaac. |
Dust |
882.0 | Follows Isaac, and is only visible when close to Isaac. Will begin to speed up when they are visible. Teleports away after taking enough damage. |
Dukie |
288.0 | Flies around the room diagonally, occasionally spitting out 1-2 Dart Flies. |
Meatball |
290.0 | Slides around the room. If Isaac is in sight, it will stop to spew a fountain of short-range blood shots in all directions or to spit a line of damaging Red Creep towards Isaac. Spawns a Host upon death. |
Mushroom |
300.0 | Stationary enemy that occasionally pops up and fires four shots in the cardinal or diagonal directions. Takes less damage while its head is down. |
Ministro |
305.0 | Hops around randomly and hop towards Isaac when he gets close, occasionally spitting out a cluster of disorganized shots. |
Fistuloid |
308.0 | Flies towards Isaac in an erratic waving motion, periodically firing a blood shot towards Isaac that also knocks itself back. Upon death, fires a worm that flies off screen. |
Poot Mine |
875.0 | Creates a gas cloud and propels itself away from Isaac when it gets hit non-consecutively. Explodes on death, detonating all the gas clouds it created. |
Flesh Maiden |
880.0 | Vaguely flies towards Isaac in curved swooping motions. |
Needle |
881.0 | Pops out of the ground and lunges towards Isaac, dealing contact damage. |
Pasty |
881.1 | Pops out of the ground and lunges toward Isaac, dealing contact damage and firing four shots in the ordinal directions. |
Fissure |
815.0 | Jumps out of pits and bounces around the room. Spawns endlessly from pits until room clear. Do not need to be killed to clear room. |
Portal |
306.0 | Spawns various enemies from the current floor until it either vanishes or is killed. |
Lil Portal |
306.1 | Spawns fly and spider enemies until it is destroyed. |
Henry |
837.0 | Flushes itself away shortly after Isaac enters the room. |
Stone Grimace |
42.0 | Stationary and invulnerable monster that occasionally fires a blood shot at Isaac. Stops firing when room is cleared. |
Vomit Grimace |
42.1 | Stationary and invulnerable monster that occasionally fires an Ipecac shot at Isaac. Stops firing when room is cleared. |
Triple Grimace |
42.2 | Stationary and invulnerable monster that occasionally fires a triple shot at Isaac. Stops firing when room is cleared. |
Gaping Maw |
235.0 | Stationary and invulnerable monster that sucks Isaac towards it, along with Isaac's tears and enemy projectiles. |
Broken Gaping Maw |
236.0 | Stationary and invulnerable monster that sucks Isaac towards it, along with Isaac's tears and enemy projectiles. Alternates between active and inactive every couple of seconds. Has a stronger attraction power than a regular Gaping Maw. |
Constant Stone Shooter |
202.0 | Stationary and invulnerable monster that continuously fires shots in a single direction. |
Cross Stone Shooter |
202.10 | Stationary and invulnerable monster that continuously fires shots in four directions, alternating between cardinal and ordinal. |
Brimstone Head |
203.0 | Stationary and invulnerable monster that fires Brimstone beams in a specific direction. |
Quake Grimace |
804.0 | Stationary and invulnerable monster that jumps and fires a line of rocks in one direction upon landing. |
Bomb Grimace |
809.0 | Stationary and invulnerable monster that keeps a single Throwable Bomb spawned. |
Stone Eye |
201.0 | Stationary and invulnerable monster that constantly rotates and fires a flickering Technology laser. Stops firing when the room is cleared. |
Mockulus |
864.0 | Invulnerable enemy that rapidly floats diagonally over obstacles and bounces off of walls, blocking tears and dealing contact damage. They can only move while Isaac is shooting. |
Morningstar |
863.0 | Floats toward Isaac to deal contact damage while Isaac is moving, gaining speed the longer Isaac continues moving. Stops moving when Isaac stops moving. |
Poky |
44.0 | Slides around the room aimlessly, damaging Isaac by contact. Disappears when the room is cleared. |
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 |
218.0 | Moves around the room like Guts, damaging Isaac by contact. Cannot be destroyed. |
Grudge |
877.0 | Quickly slides towards Isaac when he gets in its line of sight. Cannot be destroyed. |
Spikeball |
852.0 | Spike balls that fly in a line either horizontally or vertically, bouncing off walls and obstacles. |
Ball and Chain |
893.0 | Spike balls that rotate at the end of a chain attached to an obstacle. If the obstacle is destroyed, the ball will fly free around the room for a while. |
Pitfall |
291.0 | Invulnerable and stationary enemy which Isaac falls into when walked over, taking damage and popping back out after a short delay. |
Teleport Pitfall |
291.2 | Invulnerable and stationary enemy which Isaac falls into when walked over, taking damage and popping back out at a random location after a short delay. |
Suction Pitfall |
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. |
Death Scythe |
66.10 | Stays stationary for a few seconds, then homes in on Isaac. |
Corn Mine |
295.0 | Goes off when destroyed or after some time, then releases a cloud of poisonous gas and fires corny shots in eight directions. |
Dark Ball |
404.1 | Floats towards Isaac, doing contact damage. |
Purple Ball |
409.1 | Floats towards Isaac, doing contact damage. |
Ultra Greed Coin (Spinner) |
293.0 | Spins around the room, dealing contact damage. |
Ultra Greed Coin (Key) |
293.1 | Spins on itself and opens a golden door around the room if not destroyed, spawning hordes of Greed Gapers. |
Ultra Greed Coin (Bomb) |
293.2 | Spins on itself and explodes with a large radius if not destroyed. |
Ultra Greed Coin (Heart) |
293.3 | Spins on itself and heals Ultra Greed for 13.125 HP each if not destroyed. |
Champions
Some monsters can spawn as a Champion which deviates in coloration and size. The champion's coloration/size denotes which peculiar behaviors and traits it will exhibit. Champions will generally drop a pickup (coinciding with the color of the champion) when killed on normal difficulty. However, in hard mode, the drop rate is reduced to 33%, while in Greed Mode, champions won't drop pickups at all.
Most champions have a visual 15% size increase, inflict full heart damage regardless of chapter, and have double the health of a normal monster. Champions are generally regarded as more dangerous than common monsters.
Champions always deal contact damage, regardless of what monster they are (e.g. a common Mulligan will not deal contact damage, but champion versions will).
The identifying scheme for champion qualities is as follows:
ID | Appearance | Effect | Drop | Rarity | Notes |
---|---|---|---|---|---|
0 | Vivid Red |
×2.5 amount of HP. | Heart | Common | |
1 | Dark Yellow |
Increased movement speed. | Little battery | Common | Doesn't appear until entering Template:Stage and its alts, or Template:Stage and its alts in Greed Mode. |
2 | Strong Lime Green |
Leaves green creep as it walks. | Pill | Common | |
3 | Vivid Orange |
Attacks cause you to drop coins (like Greed or a Hanger).
The number of coins dropped range from 1-3, which take away 2-4 coins in total respectively. No coins are dropped if you don't have any. |
Coin | Around 2x rarer than common champions. | |
4 | Vivid Blue |
Decreased speed. | 3 Blue Flies | Around 2x rarer than common champions. | |
5 | Dark Cyan |
Explodes when killed. | Bomb | Common | |
6 | White |
Invincible until all other enemies are killed. | Eternal Heart | Around 10x rarer than common champions. | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
7 | Dark Gray |
2/3 health, decreased speed. | Key | Common | |
8 | Transparent White |
Tears become spectral tears, and it can move past environmental obstacles (such as pits) that it otherwise couldn't when forced. | Locked Chest | Around 10x rarer than common champions. | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
9 | Black |
Fades in and out of visibility, like a Null. | Red Chest | Around 10x rarer than common champions. | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
10 | Pure Magenta |
Periodically shoots short-ranged blood shots, similar to Gushers. | Nothing | Common | |
11 | Mostly Pure Violet |
Pulls Isaac and his shots towards itself, like a Gaping Maw. | Random trinket | Around 10x rarer than common champions. | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
12 | Dark Red |
Collapses into a flesh pile upon death and regenerates if not finished off (like a Globin). | Double Heart | Around 2x rarer than common champions. | |
13 | Very Light Blue |
Releases blood shots in 8 directions when killed. | 1/2 heart | Common | |
Afterbirth | |||||
14 | Camouflage |
The enemy blends into the background and briefly becomes visible when damaged. | Rune | Around 4x rarer than common champions. | |
15 | Pulsing Strong Lime Green |
Splits into two copies of itself upon death. | 2 normal versions of itself | Around 4x rarer than common champions. | |
16 | Pulsing Dark Gray |
Repels Isaac's shots when it pulses. | Nothing | Around 4x rarer than common champions. | |
17 | Light White |
Has 1-2 Eternal Flies circling it. Spawns another fly upon death. | Attack Fly | Around 4x rarer than common champions. | |
18 | Small |
Decreased health, increased speed and pitch of sound effects. 50% smaller both visually and collision-wise, making them more difficult to hit. | One Makes You Small pill at 1/5th of difficulty based drop rate. | Around 4x rarer than common champions. | Using the pill dropped will change all other pills matching its color into One Makes You Small pills. |
19 | Large |
Increased health, slightly decreased speed and decreased pitch of sound effects. Visually 50% larger, though collision remains the same. Deals two full hearts of damage. | One Makes You Larger pill at 1/5th of difficulty based drop rate; can change other pills in the current rotation. | Around 4x rarer than common champions. | Using the pill dropped will change all other pills matching its color into One Makes You Larger pills. |
Afterbirth+ | |||||
20 | Pulsing Vivid Red |
All other enemies in the room regenerate health at the rate of 20 HP per second while this enemy is alive. | Heart | Around 10x rarer than common champions. | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
21 | Pulsating |
Spawns an Attack Fly on hit. After each hit, there is a delay until the next hit results in another Attack Fly. A single Pulsating enemy can have up to 5 Attack Flies at once. | 4-6 Blue Flies | Around 10x rarer than common champions. | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
22 | Crown |
Increased health. All enemies in the room that are not champions will turn yellow while the crowned enemy is alive. The affected enemies will drop batteries like yellow champions upon dying, but otherwise have no extra health, speed or damage | 2-3 random pickups | Around 10x rarer than common champions. | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
23 | Skull |
Produces a The Necronomicon effect upon death. Deals two full hearts of damage. | The Necronomicon effect | Around 10x rarer than common champions. | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
Repentance | |||||
24 | Brown |
Trails poop behind it as it walks. | Nothing | Unknown | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
25 | File:Champion Rainbow.png Rainbow |
Combines the effects of champion types 0, 2, 5, 10, 11, 13 and 17. | A coin, a bomb, a key, a heart, a pill, a card and a trinket. | Unknown | Doesn't appear until entering Template:Stage and its alts, or Template:Stage in Greed Mode. |
The chances for Champion monsters to appear are noted in the table below:
Modifiers | Normal mode | Hard mode | The Void |
---|---|---|---|
Base chance | 5% | 20% | 75% |
Champion Belt | 20% | 35% | 75% |
Purple Heart | 10% | 40% | 100% |
Purple Heart + Mom's Box | 20% | 80% | 100% |
Champion Belt + Purple Heart | 40% | 70% | 100% |
Champion Belt + Purple Heart + Mom's Box | 80% | 100% | 100% |
- Champion Belt adds 15% to the base champion chance. This has no effect in The Void.
- Purple Heart doubles the champion chance, and stacks with Champion's Belt.
- Mom's Box changes Purple Heart to quadruple the chances instead of doubling.
Notes
Monster Replacements
Some monsters have a chance to be replaced with other monsters when they spawn, but only at room entry. Some replacements only occur on certain floors.
(Disclaimer: Chances are approximate!)
Base Monster | Replacement | Chance | Notes |
---|---|---|---|
Rebirth | |||
10% | |||
1% | |||
6% | |||
6% | |||
5% | |||
5% | |||
5% | |||
1% | |||
10% | |||
1% | |||
10% | |||
6% | |||
1% | |||
10% | |||
10% | |||
5% | |||
1% | |||
6% | |||
10% | |||
6% | |||
6% | |||
1% | |||
6% | |||
1% | |||
6% | |||
6% | |||
Afterbirth | |||
60% | Exclusive to Burning Basement | ||
60% | Exclusive to Burning Basement Only a single Burning Basement room contains a Pale Fatty, making it a very unusual replacement to witness. | ||
60% | Exclusive to Burning Basement | ||
50% | Exclusive to Flooded Caves | ||
50% | Exclusive to Flooded Caves | ||
50% | Exclusive to Flooded Caves | ||
50% | Exclusive to Dank Depths | ||
50% | Exclusive to Dank Depths | ||
50% | Exclusive to Dank Depths | ||
50% | Exclusive to Scarred Womb | ||
50% | Exclusive to Scarred Womb | ||
50% | Exclusive to Scarred Womb | ||
Afterbirth+ | |||
10% | |||
20% | |||
20% | |||
20% | |||
20% | |||
20% | |||
10% | |||
20% | |||
20% | |||
40% | Exclusive to Burning Basement Rottys do not appear in any Burning Basement room layouts, but can still be replaced regardless. | ||
50% | Exclusive to Flooded Caves Dank Chargers do not appear in any Flooded Caves room layouts, but can still be replaced regardless. | ||
20% | Exclusive to Aprils Fool challenge | ||
Repentance | |||
Unknown | In floors other than Downpour |
The Binding of Isaac: Rebirth |
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