Mechtogan first appeared as an entity released accidentally by Dan, that wreaks havoc whenever Drago battles. In Mechtogan Mayhem, it is revealed that despite their mechanical nature, they are fully sentient beings. In Chaos Control, it was shown that Drago had to tame Zenthon in order to obey his commands. In the anime, Some Mechtogan may need to be tamed/broken in before they will obey you. It is similar to what cowboys would do to break wild stallions in. According to Genesis Dragonoid, Mechtogan are also born from desire to come together with others.