Whoa. I see a pattern here. The corpse on the ground is headless. Perhaps the evil robot has the ability to attach its head to p-suits as well? But then, why ditch the p-suit at the last minute? What happened? did it find a better replacement body, or lol, could it just hop along as a head on the ground. Or perhaps my theory is incorrect to begin with and there is a completely different explanation for the headless corpse. Anyway cool update, and I am fascinated by the built in gantry system concept.
I just thought of something. The robot heads could sprout mechanical spider legs when there is no host body to attach to. Kind of like that scene from John Carpenter's Thing movie.