Entity
|
ID
|
Description
|
Pooter

|
14.0
|
Slow-moving fly that occasionally fires single blood shots at Isaac. Does not deal touch damage.
|
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.
|
Attack Fly

|
18.0
|
Red fly that follows Isaac and deals touch damage.
|
Hive

|
22.0
|
Walks around the room, avoiding Isaac while spawning Attack Flies. Spawns a large number of flies upon death, which can be Flies, Attack Flies or Pooters.
|
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.
|
Boom Fly

|
25.0
|
Flies around the room diagonally, dealing touch damage and exploding upon death.
|
Red Boom Fly

|
25.1
|
Flies around the room diagonally, dealing touch damage and releasing 6 blood shots in all directions upon death.
|
Maw

|
26.0
|
Slowly floats towards Isaac, firing blood shots at him when he is in their range.
|
Red Maw

|
26.1
|
Floats 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.
|
Hopper

|
29.0
|
Slowly hops around the room, doing touch damage. Can turn into a Flaming Hopper by jumping into fire.
|
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.
|
Brain

|
32.0
|
Slowly crawls around the room, leaving a trail of Red Creep.
|
Leaper

|
34.0
|
Hops around the room, doing touch damage. Occasionally jumps high into the air, dropping down onto Isaac's position while firing 4 blood shots in the cardinal directions.
|
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.
|
Baby

|
38.0
|
Slowly floats towards Isaac and fires a blood shot at him. Occasionally teleports and reappears elsewhere.
|
Vis

|
39.0
|
Randomly wanders around the room. Pauses to charge and fire a Brimstone laser 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.
|
Guts

|
40.0
|
Attaches itself to a wall or obstacle and rolls around it.
|
Knight

|
41.0
|
Moves erratically around the room and charges towards Isaac when in line of sight. Can only be damaged from behind.
|
Stone Grimace

|
42.0
|
Stationary and invulnerable monster that occasionally fires a blood shot at Isaac. Stops firing when room is cleared.
|
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.
|
Flaming Hopper

|
54.0
|
Quickly hops around the room, doing touch damage. Covers a larger distance than the regular Hopper.
|
Leech

|
55.0
|
Quickly charges towards Isaac when he gets in its line of sight.
|
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.
|
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.
|
Embryo

|
77.0
|
Aimlessly hops around the room, dealing contact damage.
|
Moter

|
80.0
|
Follows Isaac, similar to Attack Flies. Splits into 2 Attack Flies upon death.
|
Spider

|
85.0
|
Erratically moves towards Isaac and deals touch damage.
|
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.
|
Gurgle

|
87.0
|
Walks towards Isaac, firing Ipecac shots at him. Can turn into a Splasher upon death.
|
Walking Sack

|
88.2
|
Does not shrink or regenerate. Walks around aimlessly and occasionally spawns Spiders.
|
Buttlicker

|
89.0
|
Can start Attached to other Buttlickers and erratically moves around the room, similar to Larry Jr..
|
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

|
92.0
|
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.
|
Big Spider

|
94.0
|
Erratically moves towards Isaac and deals touch damage. Splits into two Spiders upon death.
|
Constant Stone Shooter

|
202.0
|
Stationary and invulnerable monster that continuously fires shots in a single direction.
|
Mobile Host

|
204.0
|
Acts like the Host, but follows Isaac and deals contact damage.
|
Baby Long Legs

|
206.0
|
Runs away from Isaac and frequently spawns Spiders.
|
Small Crazy Long Legs

|
207.1
|
Chases Isaac, dealing touch damage. Occasionally stops to spit 4 blood shots in the diagonal directions.
|
Flaming Fatty

|
208.1
|
Slowly walks towards Isaac. Occasionally farts, which pushes Isaac and adjacent enemies away. Has a chance to leave behind a damaging flame 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.
|
Pale Fatty

|
210.1
|
Slowly walks towards Isaac. Occasionally farts and shoots 6 blood shots in all directions. Has a chance to turn into a Blubber upon death.
|
Half Sack

|
211.0
|
Wanders around aimlessly and leaves a trail of Red Creep.
|
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.
|
Mom's Hand

|
213.0
|
Falls from the ceiling. If it lands on Isaac, it deals damage and teleports the player back to the spawn room of the floor. Entering a room containing Mom's Hand will warn the player with Mom's laugh.
|
Dip

|
217.0
|
Slowly dashes in random directions, dealing contact damage.
|
Corn

|
217.1
|
Quickly dashes in random directions, dealing contact damage.
|
Wizoob

|
219.0
|
Disappears, then appears near Isaac and spits a cluster of spectral tears at him.
|
Squirt

|
220.0
|
Dashes towards the player and deals contact damage. Spawns 2 Dips upon death.
|
Ring Fly

|
222.0
|
Gathers with any other Ring Flies in the room. These flies orbit around themselves while following Isaac.
|
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.
|
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.
|
Bony

|
227.0
|
Wanders around the room and throws a bone at Isaac when he is in sight.
|
Tumor

|
229.0
|
Moves around the room diagonally, occasionally firing 6 blood shots in all directions. Fires more often upon getting damaged.
|
Nerve Ending

|
231.0
|
Static enemy which acts as a meat shield.
|
One Tooth

|
234.0
|
Follows Isaac and periodically dashes towards him when it gets close. Deals contact damage.
|
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.
|
Gurglings

|
237.1
|
|
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.
|
Rage Creep

|
241.0
|
Slowly crawls along walls to try to line up with Isaac and shoots a Brimstone laser.
|
Blind Creep

|
242.0
|
Randomly crawls along walls and shoots three spread blood shots.
|
Round Worm

|
244.0
|
Pops out of the ground in random locations and spits a blood shot at Isaac if he is in sight.
|
Ragling

|
246.0
|
Quickly leaps towards Isaac and deals touch damage. Randomly shoots two purple shots that orbit around it.
|
Flesh Mobile Host

|
247.0
|
Acts like the Red Host, but follows Isaac and deals contact damage.
|
Psychic Horf

|
248.0
|
Stationary enemy that fires a homing shot at Isaac when he gets in range of them.
|
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.
|
Psy Tumor

|
253.0
|
Moves around the room diagonally, occasionally firing 6 homing shots in all directions. Fires more often upon getting damaged.
|
Floating Knight

|
254.0
|
Behaves like the Knight but slower, and can fly over all obstacles.
|
Fat Bat

|
258.0
|
Slowly flies towards Isaac. Tries to align itself diagonally to Isaac and shoots at him when in that alignment.
|
Lil' Haunt

|
260.0
|
Follows Isaac erratically and occasionally shoots a blood shot towards Isaac's destination, predicting his movements.
|
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.
|
Black Globin's Head

|
279.0
|
Slides towards Isaac, leaving a trail of damaging Red Creep.
|
Black Globin's Body

|
280.0
|
Walks aimlessly around the room, occasionally spawning spiders.
|
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.
|
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.
|
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 the player with Mom's laugh.
|
Dukie

|
288.0
|
Flies around the room diagonally, occasionally spitting out 1-2 Dart Flies.
|
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.
|
Hush Fly

|
296.0
|
Gathers with other Hush Flies and flies towards Isaac in certain patterns. Can also orbit Hush.
|
Blue Gaper

|
297.0
|
Walks towards Isaac, dealing contact damage.
|
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.
|
Greed Gaper

|
299.0
|
Walks towards Isaac, dealing contact damage.
|
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.
|
Blister

|
303.0
|
Slowly hops towards Isaac, occasionally spawning a Dark Ball. Spawns a Sack upon death.
|
Ministro

|
305.0
|
Hops towards Isaac, occasionally spitting out a cluster of disorganized shots.
|
Portal

|
306.0
|
Spawns various enemies from the current floor until it either vanishes or is killed.
|