Apocalymon

Apocalymon is the main antagonist of Digimon Adventure.

Personality
Apocalymon has a dark sense of humor despite him being "required" to be miserable; after explaining his plan to the DigiDestined he begins to laugh, but quickly stops himself, commenting that he's "supposed to be depressed". In the Japanese version, however, Apocalymon refers to himself in the plural sense, likely in reference to the Biblical Legion, who claimed to be possessed by a multitude of demons acting as a gestalt. Regardless of how the trait it showed, he's clearly meant to be almost completely insane.

Digimon Adventure
Apocalymon's arrival was foreseen in ancient prophecies: he came from beyond the Wall of Fire and was born from the feelings of jealousy and hatred belonging to Digimon who died during Digivolution. A sadistic and tormented soul, Apocalymon wants to make the Digital and Real Worlds into living underworlds to justify the darkness that composes him. His existence generates chaos in the Digital World and in space-time itself, particularly the creation of the Dark Masters.

After the DigiDestined defeat Piedmon, the last of the Dark Masters, Spiral Mountain disappears, and the children drop into a strange, empty space. Gennai contacts them, revealing that the true cause of the Digital World's afflictions will soon appear. Apocalymon then shows up, and after demonstrating the techniques of the evil Digimon who compose him, he uses his "Reverse Digivolve" to revert all of the DigiDestined Digimon to their base forms. He then deletes their Tags, Crests, and bodies, sending them all to the Data World.

Once in the Data World, the DigiDestined realize that they have the Crests' power within them all along, and their Digimon are once again able to digivolve. They rematerialize into the Digital World and face off in a battle royale in their highest levels.

After Zudomon, Lillymon, MagnaAngemon, Angewomon, MegaKabuterimon and Garudamon destroy all of Apocalymon's claws and distract Apocalymon, WarGreymon and MetalGarurumon destroy his humanoid form. The DigiDestined think that they won; however, as Apocalymon explains, the humanoid form is only a part of him, albeit an important one. He then attempts to take both worlds down with him using his ultimate attack, Total Annihilation. However, the children's Digivices contain the attack, so all that it achieves is his own death. As a result, the Digital World reformats and the time difference between the two worlds equalize.

Gallery
See more pictures of Apocalymon (Photo Gallery)