Megatron (Beast Machines)

Megatron's History

Breaking free from his constraints on the Autobot shuttle while it traveled through transwarp space, Megatron arrived back home on Cybertron well before the Maximals did.

He used the window of opportunity for maximum effect, releasing a virus across the planet that quickly incapacitated the population

He then began extracting the victims' sparks and storing them in a citadel, planning to one day absorb them into his own spark. Meanwhile, he used factories to rebuild the bodies into mindless drones he called "Vehicons. Eventually, he had almost every spark on Cybertron in his possession. At some point Megatron's former follower Waspinator managed to make it back to Cybertron through unknown means. However Megatron simply extracted his spark too.

When the Maximals arrived in their shuttle, they found the planet empty, aside from Vehicons who immediately attacked them with canisters of a gas that infected them with the virus. The fully-Transmetal among them "devolved" into their original beast modes but were able to keep moving and escape. The remaining two, Rhinox and Silverbolt (who never received any form of upgrade on Earth), were instead paralyzed and quickly overtaken. Their sparks soon joined Megatron's collection

The escaped Maximals would have succumbed to the virus eventually if not for the Oracle reformatting them. Megatron observed their first battle against the Vehicon drones, vowing to destroy the impurity in his technological paradise.