I Know this is pretty Far Fetched but it could be possible. And Here It is: I was thinking the other day about TFP Unicron then..... What if the fallen and unicron Are One Character. Perhaps Cybertron was once attacked by unicron and the chaos bringer was destroyed but his essence still lived on. After which the fallen, Hungry for power he searches for the essence which is dark energon and he infuses himself with it and then he becomes Unicron in body and spirit. He fights his brothers then is defeated and is imprisoned on earth. The only thing here that is actually based on canon fiction is something from exodus which is the part in which the ancients defeat the chaos bringer which is at best the explanation for the existence of dark energon on cybertron in the first place. This is just speculation and will probably end up being Bullsh@t so whatever. Thoughts?