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Xxx form2 Isaac Rebirth

Swarmer is a new type of enemy added in the expansion Wrath of the Lamb, which can be found in Necropolis.

Behavior[]

They act similar to the Duke of Flies. This enemy will constantly spawn regular Flies. However, when hit, he will spit out two Pooters or Fat Flies in variation. When the Swarmer is destroyed, it will spawn a Boom Fly or a Red Boom Fly.

This enemy does not shoot projectiles, so it's best to kill the flies first. If the player has considerable firepower, focusing fire on him hoping to kill the Boom Fly as soon at it spawns (and the surrounding flies with its blast radius) is also a viable strategy.

They can float across the room, which can be annoying when there are rocks blocking your shots. In the XL room, they may also float from a dark place, making them hard to see and easier for them to inflict damage on Isaac.

It is also worth noting that Swarmers are immune to the touch-damage effect conferred by the item My Little Unicorn, the Chariot tarot card or the Virus. On the other hand, this enemy does not deal touch damage.

Eternal Champion Behavior[]

Eternal Swarmers spawn Eternal Flies instead of regular Flies, one Pooter and one Eternal Fly when damaged, and will split into 3 non-Eternal Swarmers when killed.

Trivia[]

  • This enemy is the next and possibly the final stage of the original Mulligan. As seen how the Black Flies nested inside the Mulligan, they multiplied forming the Hive, and eventually took control of the Hive, forming the Swarmer, being nothing but a flying nest of flies. It's very intentional considering the game theme of decay, how in the early chapters they seem partially "infected" by the flies, and they eventually decayed over time in the later floors.[1]
    • Given that the Gaper, Mulligan, Hive, and Swarmer are all the same monster in stages of decay and infestation, the Swarmer seems to be in the severe stages of decay, to the point of being practically nothing but a skull by this point.

References[]

Monsters
Fly variants FlyBlack FlyCUSTOMredflyAttack FlyMotersMoter • (Wrath of the Lamb DLC: White flyEternal Fly)
Gaper variants GaperGaperFrowninggaperFrowning GaperShape4336Mr. Maw • (Wrath of the Lamb DLC: Green gaperGurgle)
Mulligan variants MulliganMulliganMulligoonMulligoonHiveHive • (Wrath of the Lamb DLC: MulliboomMulliboom)
Horf variants HorfsHorfMawsMawRedmawRed Maw • (Wrath of the Lamb DLC: PsychicmawPsychic Maw)
Vis variants VisVis • (Wrath of the Lamb DLC: Vis FioDouble VisChubby VisChubber)
Maggot variants MaggotMaggotChargerChargerSpitySpitty
Hopper variants HopperHopperFHopperFlaming HopperLeaperLeaper
Boil variants BoilBoil • (Wrath of the Lamb DLC: Green boilGutWhite boilSack)
Clot variants ClottyClottyClot2ClotBlockadeI. Blob
Leech variants LeechLeechLeech2Kamikaze Leech • (Wrath of the Lamb DLC: Holy leechHoly Leech)
Spider variants Wrath of the Lamb DLC: Black spiderSpiderBig spiderBig SpiderSpider hopperTrite
Pooter variants PouterPooter • (Wrath of the Lamb DLC: SuperpooterFat Fly)
Boomfly variants BoomflyBoom FlySpitflyRed Boom Fly
Pacer variants PacerPacerGusherGusher
Sucker variants SuckerSucker • (Wrath of the Lamb DLC: PufferSpit)
Globin variants GlobinGlobinGlobin 2Gazing Globin
Knight variants KnightsKnightAlternative knightSelfless Knight
Eye variants EyeEyeEye2Bloodshot Eye
Host variants Host1HostHost2Red Host
Baby variants BobyBaby • (Wrath of the Lamb DLC: Angel babyAngelic Baby)
Eye variants EyeEyeEye2Bloodshot Eye
Poky variants PokiesPoky • (Wrath of the Lamb DLC: Spike trapSlide)
Brain variants BrainBrainMembrainMembrain
Gut variants GutsMonsterGuts • (Wrath of the Lamb DLC: Big gutsMama Guts)
Dople variants Dople1DopleDople 2Evil Twin
Grimace variants TurretStone Grimace • (Wrath of the Lamb DLC: VomitTurretVomit Grimace)
Keeper variants Wrath of the Lamb DLC: AvariceKeeperHang manHanger
Standalone variants ParabitePara-BiteFredFredLumpLumpEmbryoEmbryoPeep Eye • (Wrath of the Lamb DLC: SwarmheadSwarmerMask HeartMask + HeartCentipedeB. Licker)
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