after Unicron awakened, a lot changed - maybe Megatron was trying to suck up to the great destroyer, it was clearly a bad idea. And his ego was hurt by Unicron's harsh words at their first meeting, so it would be better if he destroyed this entity... Of course, not alone. It was absurd, it was wrong, it broke everything they saw, but Megatron didn't care, unlike the Autobots. To defeat Unicron, they needed the matrix, which was in the possession of his worst enemy - Optimus.

no matter how much Ratchet swore, under the voltage in the air, Optimus decided to shake hands with the Decepticon faction and let this formidable leader go.

passing through the ground bridge, illuminating everything around in green. Megatron's heavy footsteps seemed to be getting closer as the Autobots raised their pillows and Optimus stayed behind to greet Megatron.

"So this is what this wonderful place is..."

he said in an almost sarcastic tone, looking around the Autobot base, smiling slyly.