Unicron is a bitter and cruel god, who never understood the true meaning of good. He is also very single minded, as he had clearly never thought of what he would do if he ever achieved his goal. He is prideful and arrogant, looking down on everyone except Primus. Unicron is the literal incarnation of Chaos. As stated by himself, Unicron lives to destroy his brother Primus, who embodies order. It has been shown that he holds grudges. Unicron has dirty gold and black plating and purple optics. 