Prototype Digimon (プロトタイプデジモン, Purototaipu Dejimon) refers to experimental Digimon that served as the basis for the creation of new Digimon or for other specific experiments. The Prototype Digimon that exist from before Digimon were discovered have an outdated Interface on their brow that allows to reconfigure the data stored within their Digicores for such experiments.
The "DORU Series" (ドルシリーズ, Doru Shirīzu), a portmanteau of "Digimon OR Unknown-Monsters", were a series of Digimon created to experiment in search of further evolutions. During an experiment the potent life-force data of the legendary beast, the "Dragon", was hidden within the deepest parts of their Digicores, giving them the potential to grow into mighty Digimon. DORUmon is believed to be a remnant of the "DORU Series".
Furthermore, because of the experiments, Digimon of the "DORU Series" can force the X-Antibody within their Digicores to allow them to remain functioning even after they have died, evolving through an special type of evolution known as "Death-X-Evolution", whose mysteries are known to Grand Dracumon. Despite their deceased condition, they can remain active by preying on the Digicores of other Digimon.
|ドルシリーズ Doru Shirīzu|
Andromon and Boltmon were developed at the same time by a group of scientists as the prototypes for Cyborg Digimon. Andromon was made emotionless and mechanically-based, while Boltmon was organically-based and as such possessed emotions and power that surpassed Andromon's. Their technology was later successfully adapted into other Cyborg Digimon such as Metal Greymon and Megadramon.
|Metal Greymon (Virus)|
Ryudamon was a prototype Digimon created to pursue further fighting strength. During an experiment the ferocious combat data of the "Dragons" and "Generals" of Japanese mythology was hidden within the deepest parts of its Digicore, giving it the potential to grow into mighty Digimon.
Rinkmon was created when an experimental Digimon, the "Digimental of Friendship", and the sample data of an experiment that accelerated elementary particles to the speed of light with an accelerator, were fused.