Mephistomon

Mephistomon is an evil Digimon and the main antagonist in Digimon Tamers Movie: Battle of Adventurers, he is the cause of the many Digimon revitalizing in the real world and creating chaos. Although he was supposed to be defeated by the main protagonists's partners, but was revived as Gulfmon after absorbing the dark powers in the Digital Spaces. Mephistomon (as Gulfmon) was then again defeated by the main protagonists' partners.

In Adventure:, he was a supporting antagonist who tried to crucify many Digimon (including Gabumon) to revive Millenniummon, his minions includes many Troopmon and Salamandermon. He was killed by WereGarurumon Digivolved from Gabumon.

In Ghost Game, Mephistomon is one of the minions of Piedmon, who opened a circus in a real-world city. He confronted the main protagonists when the main protagonists found out Angoramon being kidnapped by Piedmon's crew. Mephistomon didn't witnessed the card match between Piedmon and Ruli and Ruli didn't cheat to become the winner, causing him to think that Ruli win the match by cheating. Angoramon, who turns to a Digimon again after the match, Digivolves to SymbareAngoramon then to Lamortmon to fight against Mephistomon. The battle was withdrawn by Piedmon, who explains that Mephistomon is incompetent and tells the truth. Then the entire crew apologizes to the main protagonists and leaves.

Trivia

• Mephistomon will soon appear in the near future episode of Team Robot In Pokemon Sun & Moon The Series he becomes the newest member of Team Skull and very soon he will get revenge on Takato, Henry, Rika and their Digimon first, and then he will destroy his enemy Ash Ketchum. He will become Team Robot's newest enemies.