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The Duke of Flies

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IsaacHDIsaac Rebirth

The Duke of Flies

Dukeofflies full

Boss The Duke of Flies


Official artwork by Edmund McMillen
Statistics
Type
Health
Damage
Boss
110
Half heart
Floor(s)
Basement
Cellar
Rebirth:
The Catacombs (Double Trouble)
Related Bosse(s)
The Husk
Effective Item(s)
Bombs
The Sad Onion
Number One
Cupid's Arrow
Dropped Item(s)
Common Drops
WotL Common Drops

The Duke of Flies (also known as The Duke for short from the artbook) is a boss that can be encountered in the Basement and Cellar.

Description

Original-Duke
He is a large, circular humanoid with "punch-holes" for eyes, light-brown skin covered with multiple warts, and stubby limbs. He sports with a autopsy stitch from his chest. His mouth with crooked teeth-filled jaw is larger enough to be filled with swarm of flies.

From the original game, the Duke's is colored light-brown. However in Rebirth, his color is now periwinkle.

Behavior

The Duke coughs out regular Flies and Attack Flies around him and floats around the screen in random directions, while bouncing off of walls. He takes a large amount of knockback from Isaac's tears.

The Duke coughs out regular flies for defense and will keep doing so if Isaac continue destroying them. These flies will circle around him. If he has too many flies around him, he can blow them away at high speeds, which will cause them to follow Isaac.

Once he has sufficient defensive flies, he will proceed to spawn attack flies instead, which are stronger and poised to attack the player from the start.

Upon death, he spawns a single Pooter and 2 more Attack Flies. In Rebirth, however, no longer does so.

Strategies

Actually getting Isaac's shots through to The Duke of Flies is the most challenging part of this encounter, and that can be accomplished in a few main ways:

  • Firing through the gaps in his shield will make it easier to kill him.
  • A single Bomb will clear out most of the flies, and deal a very large amount of damage to him.
  • The boss gets significantly harder if Isaac can't land his shots right away. The green champion variation is particularly dangerous as shooting down Moters will make it very easy to get hit.
  • When the Duke starts spitting up large Attack Flies, focus on them when they appear to keep things under control.
  • If Isaac get swarmed by the Flies, it is always a good idea to leave the Duke alone and concentrate on his spawns. While this will not damage the Duke in any way, ignoring the flies for too long can lead to so many of them that they become too much to handle.
  • Having Skatole will grant immunity against all flies that are not orbiting the Duke. Attack flies that have been spawned by the Duke but not yet released from his orbit will harm Isaac if he runs into them.

Notes

  • The Duke of Flies has three distinct sounds that he uses before an attack. Learning what these are will help when fighting him.
    • One sound for spawning a large Attack Fly (when he smiles).
    • One sound for spawning 3 Attack Flies (when he swell his cheeks).
    • One sound for releasing some defensive flies to attack Isaac.

Champion Varieties

Orange

Duke of Flies Orange

Larger than the original Duke of Flies. Instead of spawning large Attack Flies, he spawns Suckers.

Green

Duke of Flies Green

Shoots blood in all directions when he coughs, and spawns Moters instead of Attack Flies.

Eternal

Is surrounded by three Eternal Flies. Upon death, he spawns far more Attack Flies and some Fat Flies.

Trivia

  • He appear in the demo for the original game.
  • Page 16

    The Duke of Flies in the Artbook.

    From one of The Duke of Flies' sketches in the artbook, his back view (which shows his visible butt-cheeks) can be seen. It was never displayed in the game, however.
    • The teeth from his upper jaw are going to be visible.
    • His eyes are originally X-shaped rather than looking like punch-holes.
  • The name "the Duke of Flies" is not a reference to Beelzebub, Edmund was unaware of this connection and simply chose the name because it "sounded neat".[1]
  • The protective ring of insects the Duke spits out to surround himself with is referred to as the Halo Of Flies, just like the item Isaac can pick up to protect himself with orbiting flies.
  • The Duke was confirmed to be Edmund McMillen's portrayal of the Pokémon Koffing.[2]
  • Duke of Flies trailer

    The Duke of Flies from the original game's trailer.

    He appear in the original game's first trailer.
  • The stitching below the Duke's mouth appears very similar to an autopsy stitch - a Y-shaped incision that allows access to the cadaver's organs that is then stitched back up when the autopsy is complete.
  • In Rebirth, flies from inside The Duke of Flies' mouth aren't animated at all for some reasons, unlike in the original game.

Sprites

Videos

References


Bosses
Bosses
Regular Bosses
BlastocystBrownieChubDaddy Long LegsDangleDark OneDingleDuke of FliesThe FallenFistulaGeminiGurdyGurdy Jr.GurglingsThe HauntLarry Jr.Little HornLokiMama GurdyMask of InfamyMega FattyMega MawMonstroMr. FredPeepPinPolycephalusRag ManScolexTurdlingsWidow
Posthumous Bosses
The AdversaryThe Blighted OvumThe BloatThe CageCarrion QueenThe ForsakenThe FrailThe GateThe HollowThe HuskLokiiMonstro IITeratomaThe StainThe Wretched
Alternative Bosses
C.H.A.D.GishStevenTriachnid
Harbingers
ConquestWarFamineDeathPestilenceHeadless Horseman
Final Bosses
???HushIsaacIt LivesThe LambMega SatanMomMom's HeartSatanUltra Greed
Unused
Sisters Vis
Mini-bosses
Seven Deadly Sins
EnvyGluttonyGreedLustPrideSlothWrath
Seven Super Deadly Sins
Super EnvySuper GluttonySuper GreedSuper LustSuper PrideSuper SlothSuper WrathUltra Pride
Angels / Demons
KrampusGabrielUrielFallen Angels

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