Apocalymon (Adventure)

Apocalymon is the final antagonist in the Digimon Adventure anime series. His name is derived from the Apocalypse, or "Revelation", the Biblical text concerning the end of the world. His design is derived from the Biblical demon Legion, a horde of demons possessing one man and acting as one.

Apocalymon's arrival was written down in ancient prophecies and the hatred of the Digimon and some who were unable to digivolve that formed him lingered on. A sadistic and tormented soul, Apocalymon wanted to make the Digital World a living underworld to justify the darkness that composes him, as well as do the same thing to the human world. Revealed that his mere existence was responsible for creating the chaos in the Digital World and creating the Dark Masters, Apocalymon debuted as the most powerful enemy to the DigiDestined. After demonstrating his used attacks from the previous enemies of the digidestined, he used his "Reverse Digivolve" attack to revert all of the Digimon back into their Rookie forms (Gatomon reverted to Champion instead). He also destroyed their tags and crests and sent the DigiDestined to the Data World.

Once in the Data World, the DigiDestined realized that they had the crest power within them all along, and their Digimon were once again able to digivolve. They rematerialized into the Digital World and faced off in a battle royale. After Zudomon, Lillymon, MagnaAngemon, Angewomon, MegaKabuterimon and Garudamon destroyed all of the Death Claws and distracted Apocalymon, WarGreymon and MetalGarurumon destroyed his humanoid form. The DigiDestined thought that they had won; however, as he explained, the humanoid form was only a part of him, albeit an important one. He then attempted to take both worlds down with him with Total Annihilation, his ultimate attack. However, the Digivices of the DigiDestined contained the attack so all it achieved was his death. As a result, the Digital World was reformatted and the time difference between the two world equalized. He is also quoted as being "The ultimate evil, complete with hot and cold running water."

In contrast to the English version, the Japanese version (also in the German, Spanish and French version) had Apocalymon refer to himself in the plural sense. This is likely a reference to the demon Legion who was also composed of many. Thus Apocalymon, as a being assembled from the data of thousands if not millions of Digimon, may truly have been a plural entity.

Apocalymon is also the boss of two parallel chapters of Digimon Tamers: Digimon Medley, and the minions of his domain are actual the Digimon whose attacks he copied. Attacks
 * Darkness Zone: Deletes its opponents.
 * Reverse Digivolution (Death Evolution): Captures the opponent in its claws and forces them to degenerate.
 * Total Annihilation (Gran Death Big Bang): Detonates its own body with enough force to wipe out an entire dimension.
 * Copied Attacks
 * River of Power (Ultimate Stream): Transforms a claw into MetalSeadramon's head, which fires its River of Power. This technique symbolizes Apocalymon's "Friendship".
 * Crimson Lightning (Bloody Stream): Transforms a claw into Myotismon's upper body, which attacks with its Crimson Lightning. This technique symbolizes Apocalymon's "Love".
 * Giga Cannon (∞ Cannon): Transforms a claw into Machinedramon's upper body, which attacks with its Giga Cannon. This technique symbolizes Apocalymon's "Justice".
 * Death Claw: Transforms a claw into Devimon's arms, which attack with its Touch of Evil.
 * Virus Grenades (Plug Bomb): Fires Datamon's Virus Grenades from every opening.