(アルカディモン究極体 Arkadimon Ultimate)
|Debut||Digimon Adventure V-Tamer 01,|
"Earthquake! Demon Castle!!" 
|Prior forms||Arcadiamon (Ultimate)|
|Next forms||Arcadiamon (Ultra)|
Arcadiamon (Mega) is a Bewitching Beast Digimon. It is a cursed Digimon artificially created based on the data of various Digimon. Its nature is to evolve by absorbing its opponent's data, but it is unclear if it possesses any sense of self. Because these details are unknown, it is currently being investigated, but it's thought that Arcadiamon's existence is the greatest threat to the Digital World, and must never be.
- Dot Matrix: An invisible attack that uses a lot of energy, but takes a chunk of the opponent's data restoring itself while doing damage.
- Exile Spear: Its arm is transformed into a spear which is used to impale an opponent.
- Arkadimon Ultimate (アルカディモン究極体)
- Arcadiamon Mega
Name used in Digimon Story: Cyber Sleuth - Hacker's Memory.
Digimon Adventure V-Tamer 01
Digimon Xros Wars (manga)