Wanted Help With Robot

I need help with this robot i'm designing nothing is certain but i would love to keep the same shape and would like some some help many thanks :) :)

More Info : i'm planning to make it a featherweight or at least something as cheap as possible i think i'll be okay with the weapon because after some consideration I've planned on giving it flippers or at the very least lifters and i'm not sure about the wiring thanks in advance.

I have redesigned the robot and have wondered if it would work it would have no weapons. (the white holes would be for the wheels)