Armageddemon

Armageddemon is a unique Digimon that was the result of an unbelievably large amount of Kuramon coming together, fusing and mutating. A brutal Digimon with an unknown attribute, his power surpasses Diaboromon's.

Description
He resembles a very large Lizard with 6 insectoid legs.

Digivolution

 * Fresh (Baby I) - Kuramon
 * In-Training (Baby II) - Tsumemon
 * Rookie (Child) - Keramon
 * Champion (Adult) - Chrysalimon
 * Ultimate (Perfect) - Infermon
 * Mega (Ultimate) - Diaboromon
 * Mega (Ultimate) - Armageddemon

Attacks

 * Destiny Destroyer (Ultimate Flare): Armageddemon fires a wave of destructive energy from his mouth.
 * Full Scale Attack (Black Rain): Launches a swarm of missile-like projectiles from his back.

Revenge of Diaboromon
After Omnimon defeated Diaboromon for the 2nd time, Diaboromon split into many Kuramon and appeared in the Real World to rejoin the other Kuramon who had been there since before the battle on the internet ensued. All the Kuramon soon gathered at Tokyo Bay near the Rainbow Bridge and merged, causing Diaboromon to digivolve into Armageddemon. He easily defeated Omnimon and Imperialdramon Fighter Mode. Then Imperialdramon was energized by the Omni Sword to become Imperialdramon Paladin Mode. He then defeated Armageddemon, reverting him to a lot of Kuramon and sending them back to the Digital World.

Trivia

 * He was named after "Armageddon", the Biblical place where the final battle between good and evil is prophesied to be fought at the end of the world.