Unicrons

The Unicrons are a faction in the Kid Rhino Home Video back-of-the-box blurb portion of the Generation 1 continuity family.

Unicron has chosen to take control of the Autobot Matrix for his own evil purposes, and to accomplish this he has created a force of super robots. By gathering the remains of fallen Decepticons, including Megatron, and infusing them with life, he forms the Unicrons. With Decepticons on one side, Unicrons on the other, and Optimus Prime lost in battle, Earth and Autobot survival depends on the hot rod who must rise up to open the Matrix and use its full power.Kid Rhino Home Video, The Transformers: The Movie 2000 DVD release

From Teletraan I: The Transformers Wiki, a Wikia wiki.