Χmon is a Program Digimon and carrier of the X-Antibody. It is a Digimon whose data is entirely comprised of the X-Antibody. In Digital Worlds affected by the X Program, the X-Antibody acts as a shield against its destructive force. However, when it leaks into a Digital World where it was never intended to be, it acts as an alien threat. It is only when X-Antibody is where it shouldn't be that this Digimon can manifest. Once they have formed, Xmon grow and multiply unceasingly, corrupting digimon into X-Forms to do their bidding. Most of them are comparable in terms of power to an In-Training or Rookie, but some get big enough to surpass Mega Level digimon. Its unique "Antibody" attribute strengthens its potency against Digimon without the X-Antibody or the Free Attribute.
Attacks:
- χ-Infestation: Forces a Digimon to undergo spontaneous "X-Evolution", turning it into its X-Antibody counterpart and forcing it to generate and spread the antibody. Smaller Xmon merge with their target to corrupt them, while bigger ones corrupt using beams of X-Antibody.
- Eraser Beam: Fires an X-shaped wave of energy from its face, degrading its opponent's data.
- X Program: Generates a sample of the "X Program" and uploads it into the opponent's body through an eye ray, deleting them and preventing them from being reborn.