Megatron is the original form. In the movie, Optimus Prime cut off his left hand and right foot with an energy knife, and SAM inserted allspark into his chest. The energy was overloaded, and the circuit was seriously damaged and went into a dormant state. Later, the earth people sank into the Mariana Trench, and the pressure on the seabed crushed Laowei into a pile of scrap iron. Only the fire (similar to a human heart) has not been extinguished.

　　Since the second change, Tuo Dou, a master mixer of Decepticons, an unknown forklift-changing robot and scalpel (Dr. Decepticons similar to bugs) sneaked into Mariana Trench, dismantled the tragic forklift robot, assembled a new body for Megatron with his parts, and rescued Megatron. While repairing Megatron's body, it also changed his shape. However, because it was a makeshift part, Megatron's long and short hands and left hands were like polio.