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Majū Tsuinberosu (Magic Beast Twinbellows)
First Appearance: Kid Icarus (1986)
Latest Appearance:

Super Smash Bros. Ultimate (2018)


Twinbellows the Ferocious

Affiliation(s): Underworld Army
Boss Type: Grounded

Twinbellows (ツインベロス Tsuinberosu), is a large, two-headed dog that is a recurring boss of the Kid Icarus series. Its body is engulfed in flames and is the very first boss that Pit faces in the series. It is referred to as "the Underworld's faithful watchdog".


Twinbellows is a large, demonic dog that lives within the dark caverns of the Underworld. In Kid Icarus, it was bright red in color, with yellow spikes running along its back (which are missing in its artwork). It also had a fiery mane, which was not visible in-game. In Kid Icarus: Uprising, its body is darker red, with much of its fur engulfed in flames. It is shown that the beast was formerly chained down since it has a large, metal brace with a broken chain attached to its left paw. Both of its heads also wear similar-looking spiked collars with chains dangling down from them. In addition, Twinbellows wears bone armor along its back, with funnel-like spouts that shoot flames running along its spine.


Kid Icarus

Twinbellows's lair

In the first Kid Icarus, Twinbellows is the Gatekeeper of the Underworld Fortress and the Three Sacred Treasures' Sacred Casket that lies within. Twinbellows travels slowly, spewing fireballs at Pit; these fireballs generally pass overhead and Pit's opening to attack is when Twinbellows is readying another shot.

Manual Description

The Gatekeeper of the Underworld fortress. A devil dog with two heads. Its body is wrapped in fire, and spits out bullets of magma energy.

Hit Points Damage Hearts Score (Experience)
100 2 0 8000

Kid Icarus: Uprising

Twinbellows in Kid Icarus: Uprising

In Kid Icarus: Uprising, Pit fights Twinbellows in a colosseum within a town of the first chapter, The Return of Palutena. Twinbellows is much larger compared to its previous appearance, and reprises its role as the first boss of the game. Its attacks include a swipe, a charge (if this misses, it is stunned for a moment from the collision with the colosseum wall), and various fire breath attacks.

A false copy created by Medusa appears in Medusa's Final Battle as one of the midbosses along with Hewdraw and Pandora. It attacks similarly as it did in the first chapter.

Idol Description

A two headed dog (hence the name) that guards the Underworld. Medusa unleashes Twinbellows during an assault on a human city, using magic to supersize the bicephalous puppy. But, for Pit, the louder they bark, the harder they fall.

Other Appearances

NES Remix 2

Twinbellows appears as a boss in a Kid Icarus challenge in NES Remix 2.

Super Smash Bros. series

Twinbellows appears as one of the numerous collectable trophies in Super Smash Bros. for Nintendo 3DS and as a spirit in Super Smash Bros. Ultimate.

Trophy Description

NA Version: Twinbellows is a flame-engulfed, demonic, doglike beast unleashed by Medusa during her attack on a human city. Its roar heralds a crimson fire that consumes everything in its path. If you hear both heads roaring, prepare yourself—this beast is definitely drawing near.

PAL Version: Unleashed by Medusa during an assault on a human city, the Underworld's fiery guard dog is a fearsome creature. People associate the sound of its roar with the sight of cities being burned to the ground. If you hear two roars at the same time, stay on your toes - it might be nearby.



  • Twinbellows appears to be take inspiration from both Orthrus, the double-headed guard dog owned by Geryon, and its brother, Cerberus, the three-headed hellhound that guarded the gates of Hades.
  • Twinbellows's Japanese name appears to be a portmanteau of the words, "twin" (ツイン tsuin), and "Cerberus" (ケルベロス Keruberosu).
  • Of all the returning bosses from the original NES game, Twinbellows is the only boss not to receive a speaking voice in Uprising.
  • Official descriptions such as Twinbellows's Idol call the monster an "it", while in-game dialogue from Uprising refers to Twinbellows as a "he".
  • Twinbellows's Idol description possibly references the size of his sprite in the original Kid Icarus (where he was around Pit's height), as it mentions that Medusa resized him when she attacked the town.

Classic Kid Icarus series enemies and bosses
Kid Icarus CollinCommylooseDaphneEelEyeEggplant WizardErinusGanewmedeGirinHewdrawHolerKeepahKeronKobilKomaytoMcGooMedusaMickMinosMoilaMonoeyeMonolithNettlerOctosPandoraPlutonPluton FlyReaperRokmanShemumShulmSnowmanSpecknoseSyrenTamamboTanatosTotemTrosTwinbellowsUranosZuree
Of Myths and Monsters BatBig ToeBusy BeeCyclops HopperCyclops SkullEggplant WizardFire SerpentFireballFuzz BallGlobeGruffGubbleKing KrabKomaytoLunusMercMinotaurMonolithOctusOrcosPuttPythagorasReaperShadow MaskSkullwingSlimeSnakeSpitball BlobSpunkySticky TalonStone GolemTotemWormser

Kid Icarus: Uprising enemies and bosses
Underworld Army ArminBelunkaBlusterBoogityBrawny ClawsBumbledropClubberskullCollinCommylooseCoralCrawlerDaphneDark Lord GaolEggplant WizardErinusFire WyrmFort OinkFrozumGanewmedeGirinGloomerangGreat ReaperGuttlerGyrazerHadesHades's HeartHandoraHewdrawIgniotKeronKomaytoLeoxMagmooMedusaMega MusselMerenguyMikMinosMonoeyeMonolithMonomiknoseNettlerOctosOrnePandoraParamushPetribomberPhilsPlutonPorcuspineReaperRemoblamShelboShemumShildeenShootflyShripShulmSinistewSkuttlerSnongSnowmanSpecknoseSplinStackjawSyrenTempura WizardThanatosTortolunkTrailtailTwinbellowsUnderworld GatekeeperVakloomWave AnglerZik & ZakZureeZurret
Forces of Nature ArlonBadootBladerBoom StomperBumpety BombCacawCaptain FlareClobblerCragalancheDibble DopFlageForces of Nature GuardHugwormJitterthugLethiniumLunar Sanctum Control CenterLurchthornMahvaMeebaMegontaMudroneNutskiParashooterPew PewPipPhosphoraReset BombReset Bomb PodSkreetleToxiecapTrynamiteUrgleZert
Aurum Aurum BrainAurum CoreAurum CloneAurum GeneratorAurum PyrrhonBagloBiotaBlitClaxisDohzJyokKolmaNukleenPlixoQuoilRezdaRozSioTaklaxTribyteXonemeZaurumZrink
Palutena's Army CenturionCenturion KnightCenturion StrongarmJuggernautPalutenaPit's Body
Chaos Kin Chaos KinShadow Pit
Other Enemies Chariot MasterDark PitGreat Sacred TreasureMagnusMimicutiePhoenixPseudo-PalutenaSoufleeSoul-Eating MonsterSpace KrakenSpace PiratesTreasurefish