Ridley knew he was no match for Samus in this form, so he faked his death, started the self-destruct countdown and escaped to the nearest pirate ship: the Orpheon.
There are some similarities between this Ridley robot and Meta Ridley, like a multi-missile attack and a weak point in his chest, which the 2D incarnations of Ridley don't have. Mecha Ridley was a partially-regenerated Meta Ridley.Ĭhronologically speaking, it would be stupid to make the final boss a new character, because Ridley comes back as a cyborg in the very next game.