Neptunmon is an antagonist and the second villain in the both the anime version and the manga version of Digimon Xros Wars.Contents [show] AppearanceNepturmon is a Mega Class Digimon that resembles the mythological character Neptune.Digimon Xros Wars (Anime)Neptunmon first appeared when an injured Gizamon told him the news that the Digidestined appeared. He and his Mantaraymon army set off to search for the intruders. Neptunmon kidnapped Archleomon and forced him to tell him where the Code Crown is. Neptunmon then summoned an army of Seadramon to take care of the Digidestined. When the water became ice, Neptunmon and Xros Heart came face-to-face and rescued Archleomon. When Shoutmon, Ballistamon, Dorulumon, and Starmons became Shoutmon X4, Neptunmon fought and attacked with his Vortex Pene