Fan:Morrismon

Morrismon is an unindentified type of Digimon whose name is derived from "Morris worm", one of the first computer worms distributed via Internet. Morrismon was born from a Digi-Egg that was infected virus capable of turning other Digimon aggressive. And killing these infected Digimon and downloading their data makes Morrismon even more powerful.

Description
Morrismon's appearance change when it becomes stronger. Its weakest form (strength same as Fresh of In-Training Levels) only like a small grey-colored Mongolian death worm. Whenever, it becomes stronger its body grows. It second form (strength same as Rookie) includes Dokugumon-like legs. The third form (strength same as Champion) includes a torso, with two arms: the left hand with big blue claws and the right hand is replaced by a large blue stinger. Its strongest known form (strength same as Ultimate) includes dark green wings, and its legs, claws and stinger have grown longer.

Digimon: Digital Monsters
Morrismon was born when one of the Digi-Eggs was infected a virus creted Ronald Yeoman, a man who was the president of the North American Division of Digicon Intrnational Enterprises. The virus was meant to make its victims more violent and kill every other Digimon within its sights. But when infecting a damaged Digi-Egg, the virus restored it and caused birth of an entirely new species: Morrismon.

Morrismon able to disrupt the dimensional portals between the human world and the Digiversum, but it was also capable of becoming stronger by killing Digimon infected by virus and download their data to itself. Morrismon was too powerful to be kileld even by six uninfected Partner Digimon in their Champion forms. But when Keisuke Ishimura and Sven Vestergaard created an antivirus program and downloaded it their Digivices, each Partner Digimon became capable of wounding Morrismon and finally destroy it.