Gaper

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Gaper
Entity image

Base HPStage HP
10
0
Table dividing line 1.png
Entity ID
10.1
Table dividing line 2.png
Found In
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
Stage Downpour.pngStage Dross icon.png
Challenge Room Icon.png

Gapers are monsters that resemble Isaac but have blood instead of tears, and their skin is paler. Gapers are commonly found in The Basement and Cellar.

Gapers will walk towards Isaac by the most direct route possible. If there is no way to reach Isaac, due to obstacles such as rocks or poop blocking the way, they will stand still until a proper route is created.

Sometimes they turn into Pacers or Gushers after dying.

Variations[edit | edit source]

Frowning Gaper[edit | edit source]

Frowning   Gaper
Entity image

Base HPStage HP
10
0
Table dividing line 1.png
Entity ID
10.0
Table dividing line 2.png
Found In
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
Stage Downpour.pngStage Dross icon.png
Stage The Chest icon.png
Challenge Room Icon.png

Frowning Gapers look identical to regular Gapers but have empty eye sockets that appear closed before they get close to Isaac. When awake, they have the same head sprite as Horfs. Frowning Gapers move quicker than Gapers, and the chance for them to turn into Pacers or Gushers is higher.

Flaming Gaper[edit | edit source]

Flaming   Gaper
Entity image

Base HPStage HP
9
0
Table dividing line 1.png
Entity ID
10.2
Table dividing line 2.png
Found In
Stage Burning Basement icon.png
Chance To Replace Gapers And Frowning Gapers In the Burning Basement
Added in Afterbirth

Flaming Gapers behave identically to regular Gapers, though they move at a faster pace, but not as fast as Frowning Gapers. They appear to be on fire but despite this, they aren't affected by it in any way. They mainly replace most of the regular Gapers in the Burning Basement Burning Basement.

Cyclopia[edit | edit source]

Cyclopia
Entity image

Base HPStage HP
10
0
Table dividing line 1.png
Entity ID
284.0
Table dividing line 2.png
Found In
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
Stage The Depths icon.pngStage Necropolis icon.png
Stage The Chest icon.png
Added in Afterbirth

The Cyclopia moves slower than normal Gapers but leaves behind a short-lasting trail of Red Creep and occasionally fires a blood shot towards Isaac.

Gurgle[edit | edit source]

Gurgle
Entity image

Base HPStage HP
40
0
Table dividing line 1.png
Entity ID
87.0
Table dividing line 2.png
Found In
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
Stage Mines icon.pngStage Ashpit icon.png
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
Stage Sheol icon.png
Challenge Room Icon.png

Gurgles are enemies that look identical to Frowning Gapers and are very common in The Catacombs The Catacombs. They are green and have at least quadruple the health of a normal Gaper. When they get near Isaac, they fire an 15►Ipecac Ipecac shot at him. Killing it has a small chance for it to become a Splasher. These shots will kill other enemies in their Area of Effect, but Gurgles themselves are immune to their own shots.

Like other enemies' explosive projectiles, Gurgles' shots can be used to shatter Rocks or open Secret Rooms by making Gurgles fire at the appropriate area.

Gurgles are somewhat more predictable and accurate in their shots compared to Guts and Walking Guts, because they will always shoot at Isaac's position. However, the timing of their shots is unpredictable. As such, an effective strategy of delivering explosives to a particular area (e.g. tinted rock or potential Secret Room entrance) is to stand still in that position as long as possible before moving to avoid getting touched, to prompt the Gurgles to shoot their projectiles at you.

Added in Repentance In Repentance, Gurgles have a hunched posture, like how they did in the original game.

Crackle[edit | edit source]

Crackle
Entity image

Base HPStage HP
40
0
Table dividing line 1.png
Entity ID
87.0
Table dividing line 2.png
Found In
Stage Ashpit icon.png
Added in Repentance

Crackles are a variant of Gurgles found only in Ashpit Ashpit. They walk towards Isaac similar to a Gurgle, but instead of shooting an explosive shot, they shoot a ball of fire that, when it touches the ground, releases 4 lines of fire in all cardinal directions.

Nulls[edit | edit source]

Nulls
Entity image

Base HPStage HP
30
0
Table dividing line 1.png
Entity ID
252.0
Table dividing line 2.png
Found In
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
Stage Sheol icon.png
Stage Dark Room icon.pngStage The Chest icon.png
Challenge Room Icon.pngSuper Secret Room Icon.pngCurse Room Icon.pngSecret Room Icon.pngBedroom2 Icon.png

Nulls appear fairly rarely in Chapter 3 and below. They behave similarly to Frowning Gapers, but walk faster and have the ability to phase in and out of visibility.

Notes[edit | edit source]

  • In Chapter 3, Nulls are most commonly encountered in a 2x2 room layout, where six of them are encased in the center, unable to chase Isaac. Isaac has to blast away some skulls first to open the path to them. Flight, as well as spectral tears, do very well here, as the player can fly in, drop a bomb, and leave, and the enemies will remain stationary where they were last chasing the player.
  • White Champion Nulls may not be able to turn invisible while invincible.
  • They are referred to as "Nulls" in the bestiary which goes both for its singular and plural usage.

Blue Gaper[edit | edit source]

Blue   Gaper
Entity image

Base HPStage HP
Removed in Afterbirth † 30
Added in Afterbirth † 16
Removed in Afterbirth † 0
Added in Afterbirth † 2
Table dividing line 1.png
Entity ID
297.0
Table dividing line 2.png
Found In
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
???
Bedroom2 Icon.pngSuper Secret Room Icon.png
Added in Afterbirth

Blue Gapers behave similarly to regular Gapers and are mainly spawned during the Hush boss fight. They can rarely appear in Bedrooms and I AM ERROR rooms.

Added in Afterbirth † They can rarely appear in a closet in The Basement The Basement,[1] The Depths The Depths, and Necropolis Necropolis. Blue gapers can also be found in the unique rooms created by Added in RepentanceBlue Key Blue Key.

Greed Gaper[edit | edit source]

Greed   Gaper
Entity image

Base HPStage HP
9
0
Table dividing line 1.png
Entity ID
299.0
Table dividing line 2.png
Found In
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
Ultra Greed
Removed in Repentance
Treasure Room Icon.png
Added in Afterbirth

Greed Gapers behave similarly to regular Gapers and are spawned during the Ultra Greed boss fight.

Added in Afterbirth † 2 Greed Gapers may rarely replace the shopkeeper in Shops.

Added in Afterbirth † 2-4 Greed Gapers have a chance to appear in Treasure Rooms.

Added in Repentance Greed Gapers no longer appear in treasure rooms and are replaced by the Bulb Fly.

Deep Gaper[edit | edit source]

Deep   Gaper
Entity image

Base HPStage HP
10
0
Table dividing line 1.png
Entity ID
241.0
Table dividing line 2.png
Found In
Stage Downpour.pngStage Dross icon.png
Added in Repentance

Deep Gapers are a new Gaper variant that appear in Downpour Downpour and Dross Dross. They will emerge from the floor once all previous enemies on certain room have been killed. Deep Gapers behave like normal Gapers after emerging.

This enemy has 14 design variants, 7 for the Downpour floor and 7 for the Dross floor. These variants are purely cosmetic with the exception of one that has a Small Leech sticking out of its head, which will detatch from it and chase Isaac when the gaper is killed.

Blurb[edit | edit source]

Blurb
Entity image

Base HPStage HP
16
0
Table dividing line 1.png
Entity ID
241.1
Table dividing line 2.png
Found In
Stage Downpour.pngStage Dross icon.png
Challenge Room Icon.png
Added in Repentance

Blurbs appear in the Downpour Downpour and Dross Dross as a different version in each chapter. They initially walk slowly towards Isaac, but after taking some damage or getting close to him, fires the water stored in its mouth as a chaotic burst of tears. After firing their tears, they act like regular Gapers and chase Isaac faster than before, attempting to deal contact damage.

Wraith[edit | edit source]

Wraith
Entity image

Base HPStage HP
10
0
Table dividing line 1.png
Entity ID
241.2
Table dividing line 2.png
Found In
Stage Downpour.pngStage Dross icon.png
Challenge Room Icon.png
Added in Repentance

Wraiths appear in the Downpour Downpour and Dross Dross as a different version in each chapter. They behave like regular Gapers but are detectable only by their reflections and the ripples in the water, and the occasional lightning in the Downpour that makes them briefly visible.

They are fully visible in the Mirrored world.

Danny[edit | edit source]

Danny
Entity image

Base HPStage HP
40
0
Table dividing line 1.png
Entity ID
241.3
Table dividing line 2.png
Found In
Stage Mines icon.pngStage Ashpit icon.png
Challenge Room Icon.png
Added in Repentance

Dannys appear in the Mines Mines and Ashpit Ashpit. They walk towards Isaac, periodically spitting a burst of rocks towards him, up to two of which may be Rock Spiders. Their rock bursts cannot spawn Rock Spiders if the two it spawned are still alive. Dannys have a long cooldown between rock bursts, but are more likely to use it soon after Isaac enters the room.

Coal Boy[edit | edit source]

Coal   Boy
Entity image

Base HPStage HP
40
0
Table dividing line 1.png
Entity ID
241.4
Table dividing line 2.png
Found In
Stage Mines icon.pngStage Ashpit icon.png
Added in Repentance

Coal Boys appear in the Mines Mines and Ashpit Ashpit. They walk towards Isaac, periodically spitting four hot coals towards him, one of which may be a Coal Spider. Hot coals linger and can hurt Isaac, but disappear after ~15 seconds, and disappear faster if they take damage. Coal Boys cannot summon coal spiders if the one it spawned is still alive. Coal Boys have a long cooldown between coal spits, but are more likely to use it soon after Isaac enters the room.

Faceless[edit | edit source]

Faceless
Entity image

Base HPStage HP
20
0
Table dividing line 1.png
Entity ID
241.5
Table dividing line 2.png
Found In
Stage Downpour.png
Stage Mines icon.pngStage Ashpit icon.png
Stage Scarred Womb icon.png
Challenge Room Icon.png
Added in Repentance

Faceless appear in the Mines Mines and Ashpit Ashpit. Initially, it wanders around the room aimlessly, occasionally firing out 6 blood shots in a hexagonal shape. Once it takes damage or if Isaac gets close to it, it starts to chase him and fires shots much more frequently.

Fanatic[edit | edit source]

Fanatic
Entity image

Base HPStage HP
35
0
Table dividing line 1.png
Entity ID
241.6
Table dividing line 2.png
Found In
Stage Mausoleum icon.png
Added in Repentance

Fanatics are cultists which appear exclusively in the boss fight against The Heretic. At the beginning they are seen in a group of 5 on the edges of a large purple pentagram on the floor, chanting and kneeling towards the center as the Heretic emerges. They are covered with shields and can not be killed until the Heretic is done spawning. Once they are done, they will chase Isaac while occasionally shooting two purple, rotating tears as it does, like a Ragling. Upon death, they have a chance to turn into Pacers or Gushers like normal Gapers.

Rotten Gaper[edit | edit source]

Rotten   Gaper
Entity image

Base HPStage HP
24
0
Table dividing line 1.png
Entity ID
10.3
Table dividing line 2.png
Found In
Stage Corpse icon.png
Added in Repentance

Rotten Gapers are a variant of Gapers found only on Corpse Corpse. They chase Isaac faster than regular Gapers, and have slightly different behavior depending on their facial expression.

  • If its eyes and mouth are normal, it chases Isaac slowly.
  • If it has a flattened eye, it chases Isaac slightly faster than a Globin.
  • If it has an empty eye socket, it chases Isaac quickly, slightly slower than a Gazing Globin.
  • If it has its eyes closed, it chases Isaac slowly, spawning Small Maggots once every two seconds.
  • If it has its tongue sticking out, it chases Isaac similarly to Lust, gaining speed as it moves but changes directions slowly, losing momentum as it does.

Twitchy[edit | edit source]

Twitchy
Entity image

Base HPStage HP
40
0
Table dividing line 1.png
Entity ID
10.4
Table dividing line 2.png
Found In
Stage Corpse icon.png
Challenge Room Icon.png
Added in Repentance

Twitchies are a Gaper/Trite hybrid found only on Corpse Corpse. They alternate between chasing Isaac and rapidly leaping at him. They leap at Isaac 1-3 times before returning to chasing him on foot, and their leaps can target him from almost across an entire normal-sized room. Their heads also occasionally twitch violently (hence the name), although this is purely cosmetic.

Level 2 Gaper[edit | edit source]

Level   2   Gaper
Entity image

Base HPStage HP
40
0
Table dividing line 1.png
Entity ID
284.0
Table dividing line 2.png
Found In
Stage Corpse icon.png
Challenge Room Icon.png
Added in Repentance

Level 2 Gapers appear in the Corpse Corpse. They look like a decaying version of Frowning Gapers.

They behave much like Frowning Gapers, however once they take enough damage, they become split into a Level 2 Horf, which spits Small Maggots at Isaac, and a Level 2 Gusher, which runs around the room and spawns Small Maggots.

Gallery[edit | edit source]

Trivia[edit | edit source]

  • Added in Afterbirth When the Added in Afterbirth15►Head of the Keeper Head of the Keeper is picked up as Keeper, he will look similar to the Greed Gaper.
  • The appearance of Cyclopias is reminiscent of the fatal birth defect of the same name, which is characterized by the failure of the embryonic prosencephalon to properly divide the orbit of the eyes into two cavities.
  • A Stoney makes the same sound as a Large Champion Gaper.
  • Frowning Gapers and Nulls don't make noises until they open their eyes and start chasing the player quicker.
  • Greed Gapers are also known as Greedlings, a name given by a card of it from The Binding Of Isaac: Four Souls, although it's seldom referred to as a "Greedling" by players.
  • Gapers and Flies are some of the monsters with the most Variations. The Gaper has 18 Variations

Bugs[edit | edit source]

Bug Bug! If a Dark-Red champion Frowning Gaper does not become a gusher or pacer and reforms, the head won't appear until the Gaper sees the player. The same goes for a normal Gaper, however, the head won't appear once reformed.
Bug Bug! If an Explosivo tear is stuck to a Null when it becomes invisible, the tear will fall to the ground.
Bug Bug! Removed in Afterbirth † If a Champion Gaper is killed and it turns into a Pacer/Gusher, it will no longer be a champion.

References[edit | edit source]


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