Megatron-01

During the series, Megatron was scheming, fierce, egotistical, sadistic, and cruel. He was very manipulative and charismatic, as he was able to rally a military of Cybertronians to his cause and gain undying loyalty from several individuals, like Dreadwing and Soundwave. However, this loyalty is not mutual, seeing as Megatron doesn't seem to care for the lives of his Decepticons - as evidenced by his abandonment of Breakdown when the latter was abducted by MECH. This stems from his intense dislike of weakness; according to Megatron, only the strongest can survive. Megatron's main concern was gaining power and he would routinely eliminate anyone who stood in his way, like Silas, Airachnid, and Predaking. He also never turned down a good fight - probably thanks to his time as a gladiator of Kaon.

Megatron, though disgusted by failure and ineptitude, is somewhat tolerant - as proven by his acceptance of Dreadwing's initial desire to punish the Autobots for his brother Skyquake's death - however it is solely to those who showed timeless loyalty to him. He was conjointly extraordinarily prejudiced, believing all life within the galaxy was second to the Cybertronians, notably organic lifeforms such as humans. His only redeeming feature was that he never discriminated against the various sorts of Cybertronians, though he has vowed to destroy his old foe, Optimus Prime, and his Autobot followers at any cost. Megatron's arrogance and pride is so bloated he refuses to allow anybody else to kill Optimus, and any bot who dares interfere will answer to his wrath. These qualities soon led to his own downfall when Bumblebee killed Megatron by stabbing him through the chest with the Star Saber.

When Megatron was possessed by Unicron he originally wished to continue his plans and rule alongside Unicron. However he was quickly dissuaded after Unicron violently put him in his place and claimed total ownership over his corporeal form, his goal shifting from universal domination to simply gaining back his freedom from the chaos bringer. Megatron even found himself rooting for his hated adversaries - the Autobots - during their fight with Unicron, despite being subjected to torture at Unicron's hand. After he was free, Megatron claimed to truly understand the meaning of oppression - having now experienced it himself - and had thus lost all of taste for inflicting it upon others, much to the surprise of Optimus, Starscream, and everyone else present. Megatron declared that the Decepticons were no more before exiling himself to somewhere across the galaxy, which proved he had learned much throughout the ordeal and grown from the experience.