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Nippon.png Monster
Agon in Agon: Atomic Dragon

Species Irradiated Prehistoric Amphibious Reptile
Enemies Mankind
First Appearance Agon: Atomic Dragon
To be added.

Agon (アゴン,   Agon?) is an atomic dragon kaiju created by Nippon TV that first appeared in the 1968 tokusatsu kaiju miniseries, Agon: Atomic Dragon.


Agon, being reptilian is cover in scales which become lighter towards the inner part of his body. His head somewhat resembles that of a Gila monster, but with short spines coming from the top and back. Similarly, he possesses sharp, curved claws at the tips of his webbed fingers.


Agon: Atomic Dragon

Agon's presence is first made known when Dr. Ukyo's Geiger counter begins detecting massive amounts of radiation nearby. Suddenly, Agon rears his ugly head from the surrounding waters, creating a spout of bubbling foam. He lets out multiple blood curdling roars as Goro begins snapping photos. He starts toward land, frightening the onlookers and urging them to duck under cover. Luckily, the supposed monster attack transitions to a mere sighting as Agon disappears into the foam once more. The encounter does not go unheard however, with Goro's pictures being published in the newspapers and making headlines everywhere.

A short time later, Goro and Detective Yamato are summoned by Dr. Ukyo, in the hopes that he can better explain the monster's motives; not without interruption however from a certain stubborn canine. Once they finally arrive at the National Atomic Energy Center, Dr. Ukyo explains that according to a biology report, Agon was a kind of dinosaur which originally roamed the Earth during the Jurassic period and has become mutated. After further questioning from Goro, Ukyo also reveals that it is very possible Agon could have remained dormant underwater and became irradiated by nuclear bombs. But, their conversation is cut short by an urgent call which turns out to be notifying the lab of an abnormality shown on the Uranium storage checking meter. As the warning lights begin to flicker, Dr. Ukyo realizes what the anomaly really is, and immediately tells the others to follow him. He sprints toward the beach as fast as he can with his partner close behind, Geiger counter in hand. Just as they step foot on the sand, the Geiger begins to detect radiation once more.

Sure enough, the ground begins to quake and the water begins to bubble as Agon appears. With a bellowing screech, Agon trudges to land, with the humans trying to escape his wrath. Ms. Shizukawa, who broke away earlier to call for the Defense Force, soon comes face-to-face with Agon who bursts through a patch of trees. She does her best to escape, but trips on a tree root and is trapped under a log which Agon knocks over. As he makes his way through the forest, he claims multiple victims, notably by more falling trees. Agon's appearance breaks out complete mayhem as surrounding town residents run for their lives. Meanwhile, Ms. Shizukawa is still in peril; but, the utter force at which Agon's gigantic feet pound the ground as he walks is enough to split the Earth wide open, trapping and instantly killing her.


Flame Breath

Agon's most icon, and arguably most devastating ability is his atomic flame breath, acquired from nuclear radiation. It has limitless power and can mow down entire towns within seconds of its use, but is surprisingly rarely used.


Although not aquatic in nature, Agon is an adept swimmer and is speculated to have laid dormant underwater since the Jurassic period. He seems to spend most of his life underwater, constantly seen appearing from and returning to the water.


Main article: Agon/Gallery.


  • Agon bears an uncanny resemblance to Godzilla, so much so that Toho prohibited Nippon TV from broadcasting Agon: Atomic Dragon for four years until they were finally convinced that the resemblance was unintentional.
  • Agon's suit was reused twice in the series Ambassador Magma, first as a generic dinosaur and then as the fire-based monster Aron.[1]


This is a list of references for Agon. These citations are used to identify the reliable sources on which this article is based. These references appear inside articles in the form of superscript numbers, which look like this: [1]

Godzilla Film Monsters AnguirusBaby Godzilla/Little Godzilla/Godzilla JuniorBaragonBattraBiollanteDestoroyahDoratEbirahFake Godzilla/MechagodzillaGabaraGiant CondorGiant LizardGiant OctopusGiganGodzillaGodzillasaurusGorosaurusHedorahJet JaguarKamacurasKamoebasKing CaesarKing GhidorahKing KongKumongaKiryuMandaMecha-King GhidorahMegaguirusMegalonMeganulonM.U.T.O.OrgaMinillaM.O.G.U.E.R.A.Monster X/Keizer GhidorahMothraRodan/Fire RodanSpaceGodzillaSuper MechagodzillaTitanosaurusVaranZilla
Other Toho Monsters Invisible Man AkitaInvisible Man NanjoSnowmanMogueraH-ManTelegianHuman VaporMagumaDogoraGezoraGanimesFrankensteinSandaGairaGiant Sea SerpentMechani-KongMothra Leo/Rainbow Mothra/Aqua Mothra/Light Speed Mothra/Armor Mothra/Eternal MothraDesghidorahGaru GaruGhogoDagahraBaremKing Ghidorah/Cretaceous King GhidorahAmano ShiratoriKumasogamiKaishin MubaOrochiUtsuno IkusagamiTitan
King Kong Monsters King KongStegosaurusBrontosaurusTwo-Legged LizardTyrannosaurus rexElasmosaurusPteranodonKikoStyracosaurusGiant OctopusGiant LizardGodzillaMechani-KongGorosaurusGiant Sea SerpentGiant BoaLady KongBaby KongVenatosaurusPiranhadonWeta-rexCarnictisArachno-clawFoetodonVastatosaurus rexTerapusmordaxVulturesaurusSkullcrawlerMother LonglegsSker BuffaloMire SquidSpore MantisPsychovultureLeafwingDeath Jackal
Kadokawa/Daiei Monsters GameraBarugonGyaosVirasGuironJigerZigraLegionIrisTotoZedusUnnamed Tentacled MonsterDaimajinKujira GamiInvisible Man
Other Film Monsters RhedosaurusLa CarcagneReptilicusGorgoOgraGuilalaObelisk Island BirdBaby GappaGappaPulgasariYonggaryKappaCykorCloverTake-MajinGeharhaDeath KappaHangyolas
Godzilla: The Series Monsters GodzillaFirst GodzillaBaby GodzillaMutant Giant SquidCrustaceous RexNanotech CreatureEl Gusano GiganteCyber FlyMutant RatCryptoclediusReptilianCracklerGiant Mutant BeeQuetzalcoatlIce BorerNessieRobo-YetiKing CobraGiant Mutant TermiteGiant BatCyber-GodzillaChameleonBacillusGiant Mutant Widow SpiderSub-Zero MantaTechno-SentientSilver HydraDNA MimicLizard SlayersSwamp BeastFire MonsterNorzzugGiant Mutant HummingbirdMedusaGiant Gila MonsterMegapedeTs-eh-Go and the Mutant ScorpionsArmillariaShrewsterSkeeteraMutant JellyfishD.R.A.G.M.A.Giant TurtleKomodithraxThorny DevilGiant ArmadilloArea 51 MutationsDeep-DwellerGiant CentipedeGiant Water BeetleRhinosaurus
Hanna-Barbera Godzilla Monsters GodzillaGodzookyFire BirdEarth EaterStone CreatureMegavolt MonstersSeaweed MonsterEnergy BeastColossusCyclops CreatureSiren SistersChimeraMinotaurMagnetic MonsterBreeder BeastGreat WatchukaDiplodocusTime DragonPower DragonGiant SquidGiant FlyAxorGiant OctopusGiant Manta RayCyborg WhaleGiant AntGiant BeeGiant Black WidowGiant BeetleGravity GoliathMagma LizardGolden Guardians
Book Monsters RozanLilinKuninGamoniSasoriGiant AntsGopherArmieGeckoGilaChuckRattlerYellowbackDogzillaKat KongVulturesaurus
Comic and Manga Monsters GodzillaGyottosSugonZottosOsorosRabanMechanical RabanKamerusLord Howe MonsterRed RoninStrangerYetrigarHero ZeroBagorahBatragonCentiporGhilaronLepiraxThe Beta-BeastTriaxRhiahnKrollarAll-TerraintulaBurtannusCybersaurGekido-jinRobotic Devil DinosaurInagosSoranTricephalonUnnamed Marvel MonstersSea BaragonFlying EbirahMachine GKing GodzillaBiollante-King Ghidorah HybridGandoraUnnamed Irradiated BirdShinomuraTrilopodMagitaNuclear Reactor DemonDoppelganger DemonHellbatsHell Gate GuardianOrochiHydra

Monsters from Video Games BijiraPajiraMajiraSuper GodzillaBaganSphectraMister MeringueMechatronThe GlogTarantusBebiraRitoraChibiraTsunoraJuniraChibikuroraDeburaMetal GodzillaBalkzardanBarugaronJyarumuRazinShiiganVagnosaurusMGR-IIndSMG-IIndObsidiusKrystalakThe Sphinx
Television Monsters Zone FighterZone Fighter MonstersGojirinNeo HedorahMedical Jet JaguarFire Fighter Jet JaguarBlack MechagodzillaSuper Special SpaceGodzilla High Grade Type 2Hyper Mecha-King GhidorahGororin
Unmade Monsters Robot DaughterGiant ArchaeopteryxGiant ChameleonRedmoonErabusHafunWyvernGarasharpMarukobukarappaMoguMajin TuolGaruganBaganDeutaliosGigamothGigamoth C TypeSasori MonsterMechaMothraBerserkTransforming MechagodzillaAstroGodzillaGiant Alien DragonflyGhost GodzillaBarubaroiGryphonProbe BatDogolasQueen BitchUnused Godzilla: The Series MonstersMibaLiopleurodonDeathlaLightning BugFire LionThe VisitorRokmutulPterodactylUnnamed Multi-Legged Monster
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26 days ago
Score 0
I knew of this guy from like 2013.


6 months ago
Score 0
I can see why Toho was so reluctant to let this film be broadcast. Agon definitely looks like a cheap Godzilla knockoff. Even the flame breath is remarkably similar, due to being tied to radiation.