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IsaacHDIsaac RebirthKeeper sprite

In-game sprite from the original game.
Half heart
Related Monster(s)
Frowning Gaper
Flaming Gaper
Greed Gaper
Blue Gaper

Gapers are children that resemble Isaac, but have blood instead of tears, a smile, and their skin is more pale. They appear in The Binding of Isaac and the Rebirth remake.

Gapers are commonly found in Chapter 1.


Gapers will attempt to walk towards Isaac by taking 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 and avoid moving towards Isaac until a proper route is created.

On occasion, they can turn into Pacers or Gushers after dying.


  • A pair of Gapers may appear at the beginning of the boss fight with Monstro.
  • In the Afterbirth expansion for Rebirth, touching a fireplace will become Flaming Gapers.


  • "Gaper" is a person who stares, typically in amazement or wonder.
  • The Gaper, Mulligan, Hive and Swarmer are all the same monster in stages of decay and infestation. The Gaper seems to be the fresh corpses, before decay sets in.[1]


Normal monsters
I Blob-button

I. Blob
More monsters coming soon...
Flies Black FlyAttack FlyMoterEternal FlyPooterFat FlyBoom FlyRed Boom FlyDrowned Boom FlySuckerSpitDart FlySwarm FlyRing FlyLevel 2 FlyFull FlyHush FlyBall of Flies
Spiders SpiderBig SpiderTriteRaglingRag TriteLevel 2 SpiderTicking SpiderBaby Long LegsCrazy Long LegsWall CreepBlind CreepRage Creep
Spheres BoilGutSackBlue BoilWalking Variants
Mulligans MulliganMulligoonMulliboomHiveSwarmerNestDrowned Hive
Headless HopperFlaming HopperLeaperPacerGusherSplasher
Gapers GaperFrowning GaperGurgleMr. MawFlaming GaperCyclopiaSkinnyRottyNullGreed GaperBlue GaperSwinger
Heads HorfPsychic HorfMawRed MawPsychic Maw
Globins GlobinGazing GlobinBlack GlobinDank Globin
Knights KnightSelfless KnightFloating KnightBone Knight
Blobs ClottyClotMega Clotty
Maggots MaggotChargerSpittyConjoined SpittyDrowned ChargerGrub
Body parts Mask + HeartBrainMemBrainGutsMama GutsEyeBloodshot EyeMom's HandDead Mom's HandScarred GutsNerve EndingStone Eye
Worms Para-BiteCod WormScarred Para-BiteRound WormNightcrawlerRoundyUlcer
Leeches LeechKamikaze LeechHoly Leech
Poop DipCorn DipSquirtDank SquirtDinga
Skeletons BonyBlack BonyDeath's HeadDank Death's HeadFlesh Death's Head
Ghosts Lil' HauntWizoobRed Ghost
Bats One ToothFat Bat
Fatties FattyFlaming FattyConjoined FattyBlue Conjoined FattyPale Fatty
Hosts HostRed HostWalking HostWalking Red Host
Vises VisDouble VisChubberCage VisScarred Double Vis
Tumors TumorPsy TumorCamillo Jr.
Spikes Wall HuggerSlidePoky
Babies BabyAngelic BabyEmbryoImp
Homunculuses HomunculusBegotten
Keepers KeeperHanger
Grimaces Stone GrimaceVomit GrimaceGaping MawTurret GrimaceBrimstone Grimace
Oobs OobBlack Maw
Others FredLumpB. LickerDukieDopleEvil TwinMeatball

Start a Discussion Discussions about Gaper

  • Gapers

    4 messages
    • He is asking what are they supposed to be. I remember hearing from somewhere (forgot) that every enemy you encounter is a lost brother or sis...
    • I wanna know why these things are in Isaac's basement.

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