The Energon Pub

I have a Megatron transformer (I think) from about 2003-ish? I have no idea what it's called? I got it for my son when he was around 4 but he rarely played with it because it was a "bad guy" (I was unaware, I bought it because I thought he'd like it). It does take batteries if that helps, has 3-4 "keys" and parts do light up. Can anyone help me out with what he's called? My son always said he was "Megatron"

That would be Cybertron Primus, from 2006. He changes into the entire planet of Cybertron, so he's no bad guy at all. In fact, he's the god of Transformers

He does require an accessory called the Omega Lock to unlock parts of his transformation:


Transformers Cybertron Primus Gallery

The keys are optional.