Transformers: Energon Episode 51 - The Sun Episode Title:The Sun.Episode Description:Final Energon Episode. Unicron is the "force that drives the universe" and Primus uses the super energon, the autobots band together and give their combination sparks to Optimus, Galvatron wakes/becomes Unicron again. Optimus Prime becomes "Ultimate Optimus Supreme" so we have another Big Galvatron/Unicron vs Big Optimus Prime battle. Galvatron sacrifices himself by becoming one with the super energon and turns into the sun for Alpha Q's planets. Optimus said to Rodimus, "We're looking at a brand new universe, Rodimus. This is just the beginning. It's just the beginning." Galvatron dies along with Starscream and Mirage.