Megatron is not content with conquest of Cybertron. When he learns of some power greater than his own, he does not attempt to merely defeat it. He will subjugate it, bend it to his will, carve up its corpse and integrate its power into himself. Megatron demands complete submission from those around him. Any opposition is savagely crushed, any insubordination violently punished. He is a monster in every sense of the word. Megatron tempers this barbarism with regal militaristic formality. He calls his closest troops "gentlemen." He speaks politely and intelligently, with an air of sophistication. He makes it perfectly clear that he is completely cognizant of his madness. Megatron's only weakness is his obsession with Optimus Prime. No matter how much power he attains, his final, glorious battle must be against him. On the occasions Prime has seemingly been destroyed, Megatron has sunk into a deep depression. Once Optimus Prime is gone, there may be no further challenges in this universe.