Godzilla: The Series Season 1 Episode 20

Juggernaut

A strange object descends from outer space, and merges with a child's remote control truck. The object turns out to be a being that can somehow assimilate technological machinery within itself, thereby taking on the attributes of said technology. Hence, the entity becomes progressively larger and more powerful, thus being labeled the Juggernaut [not to be confused with Cain Marko!].