Parallelmon

Parallelmon is a Mutant Digimon whose name and design are derived from the concept of Parallel Universes. He is a cool-headed Digimon who was programmed to travel back and forth between numerous parallel worlds. He then absorbs the data of Tamers, making itself stronger. He is also one of three digimon (Anubismon and GranKuwagamon are the other two) who can open portals to other realities.

Originally, the four Digimon Sovereigns battled him long ago and thought they had defeated him. Instead, Parallelmon had fled to another dimension in order to escape and recover. More recently, he began to appear in the human world. He only appeared for a few moments at a time, puttting Cyberdramon on edge, but not remaining long enough to really set off any alarms. When Henry, Rika, Suzie, and their digimon went on a camping trip, he appeared and attacked the group. He intended to absorb the tamers and become stronger, but they Biomerged together and were beyond his ability to touch. For a while, he battled the trio of megas (during which, the other tamers and digimon raced towards them since they could finally get a lock on his position), but he ultimately was losing the fight. When he realized he was doomed to failure, Parallelmon opened a portal to another dimension and sent the group through before disappearing himself.