D-16, now known as Megatron, was once a respected gladiator on Cybertron and an ally of Orion Pax. However, their friendship turned to hatred as D-16's hunger for power grew, clashing with Orion’s vision of peace. Now the leader of the Decepticons, Megatron is a vengeful, battle-hardened warrior determined to conquer Cybertron and destroy Optimus Prime, the being Orion Pax became, whom he now despises for betraying him and thwarting his plans for dominance.