Right now, Digimon and V-Pets are causing chaos all over the world. Soon they'll destroy the entire planet, and there's not a thing you can do to stop them!
~ Mephistomon

Mephistomon (also called Mephismon in Japanese), also known as Gulfmon, is the main antagonist in the Digimon Tamers movie "Battle of Adventurers".

He was voiced by Jyurohta Kosugi in the Japanese version, and Richard Epcar in the English version.


Mephistomon is an Ultimate Class Digimon. He looks like a winged man with a goat's head and hooves.

Gulfmon is much larger and more powerful but less intelligent form. Gulfmon is built like a giant beastial winged centaur. He has a second hidden mouth on his lower torso. He is as huge as a mountain. It's said to be connected with an abyss in the Dark Area, and if inhaled, an opponent's DigiCore is smashed to pieces.

He lurks within the deepest parts of the Dark Area but appears on the surface in order to destroy it.

Digimon Tamers

Before the Movie

Reformatted from an Apocalymon, Mephistomon has a deep hatred for all life, and so plots to destroy the world and everything in it. In order to do so, he disguises himself as Ryuuji Tamashiro, the president of the Okinawan VP Laboratories. He soon becomes famous for his part in marketing the V-Pet, a digital pet that he modified to cause other Digimon to Bio-Emerge and become his servants.

As Ryuuji Tamashiro

Ryuuji Tamashiro, the president of an Okinawan company named "VP Laboratories". As the president, Ryuuji implanted a virus within the V-Pet which secretly allows other Digimon to Bio-Emerge in order to wreak destruction and act as his servants, and Ryuuji quickly gains fame for his part in marketing the toy. However, the original creator of the technology, Takahito Uehara, detects the virus and creates a vaccine for it which he implants in the original V-Pet program, which he had given to his daughter, Minami, as a replacement for her deceased pet dog Mei.

As Mephistomon

Once Uehara reveals that the vaccine is in Seasarmon, Mephistomon sheds his disguise and attacks the Tamers, and defeats Seasarmon, reverting him back to Labramon. As part of the battle, he drags the group into an apocalyptic dimension modeled after his intentions for the Real World. Even Mephistomon was stronger the Tamers' digimon (who fought in the their Champion forms), he was defeated by Growlmon by blasting a ship floating in the sky, causing it to fall on him. Labramon sacrifices himself to release the vaccine program to activate and purge the virus. It is revealed that Mephistomon is not actually dead and survived the falling ship, and that he digivolves into Gulfmon. He was ultimately defeated by WarGrowlmon, Taomon, and Rapidmon's Trinity Force attack, and the apocalyptic dimension collapsed upon Mephistomon’s demise.

As Gulfmon

Although Mephistomon was never destroyed, he survived the fall of the ship and digivolved into Gulfmon. He easily overpowered Growlmon, Gargomon, and Kyubimon. The 3 heroric Digimon became their Ultimate forms and ultimately defeated Mephistmon/Gulfmon with their Trinity Force attack.


As Mephistomon

  • Black Sabbath: Recites a dark incantation in which it prays for a festival of death; those who hear the spell soon die.
  • Dark Cloud (Death Cloud): Generates a cloud of darkness which causes everything to decay.

As Gulfmon

  • Dead Scream: Unleashes a deafening shriek killing anyone who listens to it.
  • Black Requiem: Using his second mouth he releases dark energy from the Dark Area.

Possible Minions of Mephistomon


  • His name is derived from the fictional devil Mephistopheles.
  • His appearance is derived from the mythological demon Baphomet.
  • Mephistomon shares many similarities with Myotsimon such as both transforming into more powerful looking forms, both are voiced by Richard Epcar, both are world conquerers and both have horns.
  • Mephistomon is the voiced by Richard Epcar, the very same voice actor who voiced both Myotismon, and the less threatening antagonist; Etemon, as well as their alternate forms. He has also the voice of the first antagonist in Digimon Data Squad; Merukimon.


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          Digimon Logo.png Villains

Digimon Adventure
Devimon | Etemon | DemiDevimon | Myotismon | Apocalymon | Diaboromon | Digimon Emperor | Kimeramon | Arukenimon | Mummymon | BlackWarGreymon | Daemon | Yukio Oikawa
Dark Masters: MetalSeadramon | Puppetmon | Machinedramon | Piedmon
Myotismon’s Army: Bakemon | Devidramon | Dokugumon | Mammothmon | Gesomon | Raremon | SkullMeramon | DarkTyrannomon | MegaSeadramon | Gizamon | Phantomon | Snimon | Tuskmon
Daemon Corps: LadyDevimon | MarineDevimon | SkullSatamon
Other: Kuwagamon | Shellmon | Seadramon | Unimon | Ogremon | Evil Greymon | SkullGreymon | Kokatorimon | Vademon | Scorpiomon | MetalGreymon | Infected Imperialdramon
Digimon Tamers
Hypnos | Mitsuo Yamaki | Beelzemon | Zhuqiaomon | ADR-01: Jeri Type | D-Reaper
Devas: Mihiramon | Sandiramon | Sinduramon | Pajiramon | Vajramon | Indramon | Kumbhiramon | Vikaralamon | Makuramon | Majiramon | Caturamon
Other: Goblimon | Gorillamon | Vilemon | Dokugumon | Devidramon | IceDevimon | Musyamon | Harpymon | Orochimon | Megidramon
Digimon Frontier
Cherubimon | Dynasmon | Crusadermon | Lucemon
Evil Hybrids: Grumblemon | Ranamon | Petaldramon | Mercurymon | Duskmon
Other: Cerberumon | Snimon | Goblimon | ShadowToyAgumon | Golemon | Volcamon | Beetlemon's Shadow | Karatenmon | Asuramon | IceLeomon | Phantomon | IceDevimon | SkullSatamon
Digimon Data Squad
Gotsumon | Merukimon | SaberLeomon | Akihiro Kurata | Gizumon | King Drasil
Bio-Hybrids: Kouki Tsubasa | Nanami | Ivan
Royal Knights: Gallantmon | Crusadermon | Leopardmon | Craniamon
Other: Kokatorimon | Drimogemon | Keramon | Neon Hanamura | Soulmon | Vilemon | DemiDevimon | Dokugumon | MetalPhantomon | Okuwamon | Hagurumon
Digimon Fusion
Lord Bagra | AxeKnightmon | Tyutyumon | Laylamon | Tactimon | Blastmon | Quartzmon
Bagra Army: MadLeomon | Orochimon | Neptunemon | Octomon | AncientVolcanomon | SkullMeramon | RedMeramons | IceDevimon | Daipenmon | SkullScorpiomon | Ebemon | Lucemon | Musyamon | Matadormon | Brakedramon | Mantaraymon
Dark Generals: Dorbickmon | NeoMyotismon | Lord Zamielmon | Splashmon | Olegmon | Gravimon | Apollomon Whispered
Other: GranLocomon | Huanglongmon | LadyDevimon | Honeybeemon | GrandisKuwagamon
DigiQuartz: MetalTyrannomon | Sagomon | Ogremon | Fugamon | Harpymon | Volcdramon | Dragomon | Sakkakumon | MetallifeKuwagamon | Diaboromon | Myotismon
Digimon Universe: Appli Monsters
Leviathan | Yūjin Ōzora | L-Corp
Leviathan’s Servants: Cameramon | Sakusimon | Mienumon | Sateramon | Knight Unryuji | Ultimate 4 | Deusmon
Others: Cometmon | Drawmon | Tubumon | Uratekumon
Digimon Adventure: (2020 Series)
Argomon | Eyesmon
Dark Digimon: Devimon | Ogremon | Minotarumon | Soundbirdmon | DarkTyrannomon | Gorillamon | Tankmon | MetalTyrannomon | SkullScorpiomon | Waspmon | Cannonbeemon | Kuwagamon | Okuwamon | Mammothmon | Bulbmon | Velgemon | Splashmon | SkullKnightmon | Calmaramon
Other Enemy Digimon: Snimon | Coelamon | Dokugumon | Coredramon

Parrotmon | Kokomon | Mephistomon | Parasimon | Ornismon | Murmukusmon | Argomon | Alphamon | Dark Gennai | Maki Himekawa | Meicoomon | King Drasil | Eosmon | Menoa Bellucci

Video Games
Analogman | Chaos Lord | Crimson | OverLord GAIA | A.o.A. | Lord Megadeath | Galacticmon | Alphamon | Chronomon DM | Jammingmon | Virus Rebootmon | Eaters | Arcadiamon | Yu Nogi

Neo Saiba | Barbamon | MachLeomon | Weddinmon | Shademon

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