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Gurdy (also known as The Pile from the artbook) is one of the bosses found in The Caves from The Binding of Isaac and the Rebirth remake. He is a static boss that remains stationary in the middle of the room. When Isaac first enters the boss room, Gurdy is accompanied by a few Boils and Flies of random variety.


He is a small humanoid with a slight Isaac-resembled appearance inhabiting a huge pile of guts. In addition to his face, he is missing a left eye and his teeth look slightly crooked.


Gurdy's basic attack is firing five shots at once, in one of three different directions. This is indicated by his pulling his head inside, and making it reappear at another side.

Gurdy can also summon Attack Flies out of the pores on his body periodically to attack. On occasion, he will also spawn a Pooter/Fat Fly out of the larger pore on the right side of his body.

Lastly, he can summon two Boils (which can be replaced by a Gut or a Sack) at once in front of him, which is signaled by raising his arms.


  • Since Gurdy does not move, he is balanced out by having the highest amount of health (among all bosses in Caves and Catacombs) to take down. This means that any Items that improve Isaac's projectile damage output will shorten this fight significantly. This also gives Isaac a good time to use Bombs if he has any to spare, since he is guaranteed to hit and take a good chunk of health off of Gurdy.
  • It is preferable to take out any of the other monsters that Gurdy summons during the fight before focusing on him, so that they do not cause problems later on.
  • Sometimes, rocks will partially block Isaac's side paths, so that dodging Gurdy's shots becomes more difficult. It may be worth it to clear them with bombs at the start of the battle (and hurting Gurdy in the process).
  • Standing behind him will prevent him from firing his 5-way shot spread at Isaac, and most of the Boil shots will not reach him. However, Flies are still dangerous in this position.
  • Another good strategy is to kill all of the enemies first, and go to a side Isaac choose. That will cause Gurdy to shoot at him, but will take some time. Go to the other side to dodge his attack. Keep repeating, and Gurdy will be killed. This strategy will not work on the champion version.
  • If Gurdy spawns a Gut on one side of the room, the Gut's explosive shots can hurt Gurdy and whatever else he spawns.

Champion Varieties[]


Gurdy alt dark

In this form, he does not spew bullets; instead, he will continuously spawn various flies and boils.


Eternal Gurdy

In this form, he fires a wide spread of 16 blood shots. He also spawns eternal Boils but the Pooters he summoned will not be eternal.


Page 21

Gurdy in the artbook.

  • The process by which Gurdy's head reappears when he performs his basic attack is described as "birthing" in the Unholy Edition art booklet.
  • Upon entering a room with Gurdy in it, the player will usually be teleported to the bottom center of the room regardless of which side the player entered from.
Page 18

Gurdy as seen on page 18 from the artbook

  • On page 18, Gurdy's appearance (from the bottom right) was going to sport with several bones and intestines sticking out of his guts.
  • Gurdy was confirmed to be male by Edmund on Formspring question regarding male bosses.[1]
  • Gurdy appears in the demo of the original game.
  • According to Edmund, his name came from GERD (gastroesophageal reflux disease)[2].
  • According to Edmund, Gurdy is based on a story centered around the D&D controversy in which a woman claimed he was thrown into a well filled with dead children; Gurdy was originally going to be composed of dead children (Isaacs, to be exact), but it was later decided to make his out of innards, to make it less confusing[3].
  • When Gurdy is frozen with a freezing item, the player will be able to push him. When he unfreezes, he will return to his original position.



Standard Bosses Dukeofflies fullThe Duke of FliesGemini fullGemini260x185-400px-Monstro.svgMonstroLarryjr fullLarry Jr.FistulaFistulaGurdy fullGurdyPeep FullPeepChubChubLoki fullLokiScolex fullScolexBlastocyst fullBlastocystTheFallen FullThe Fallen

Wrath of the Lamb DLC: 260x200-400px-Widow3WidowPin cleanPinMask of InfamyMask of InfamyGurdjrGurdy Jr.VS DaddyLonglegsDaddy Long Legs

Posthumous Bosses 285x230-MonstroII fullMonstro II

Wrath of the Lamb DLC: The HuskThe Husk260x220-The Hollow2The Hollow250x200-Teratoma.TeratomaLokii cutoutLokiiBlighted ovumBlighted OvumCarrionqueenThe Carrion QueenThe WretchedThe WretchedBc BloatThe Bloat

Alternate Bosses 287x265-Steven FullsizeStevenChub fullC.H.A.D.Gish fullGish

Wrath of the Lamb DLC: 200x300-400px-Triachnid boss portraitTriachnid

Harbingers 220x287-Isaac Vs famine edited- noobletkFamineBC PestilencePestilenceBC WarWarVSDeathDeath230x200-Headless HorsemanHeadless Horseman

Wrath of the Lamb DLC: BC ConquestConquest

Final Bosses 250x250-400px-MomMomMoms Heart FullMom's Heart250x250-ITLIVEScutoutIt LivesSatan FullSatan

Wrath of the Lamb DLC: Bc isaacIsaacBC xxx???