rolled 62 = 62
you are speaking to an engineering student FYI
Mechanical is not even close to Electrical however...
I am also a lazy bastard, and therefore disenclined to actually do any of this.
I suspect that on closer examination several combinations can be used to avoid "double usage" for example, you wouldn't need a shake/nod/twist set of servos, if you had the spider legs, or the helecopter.
the webcam, laser, NERF weapons, need not be individually actuated if he entire skull is actuated.
while >>>11051138 does show one way of rotating the skull it has a limited range of motion as compared to a turntable, or just leaving it to the 'chassis' you put it on.
if you opt to 'wear' the skull on a perch or other such method a seemingly simple program combined with either a sonar, optical, or motion sesitive receptor could tell you if there is a wall or person bihind you by vibrating slightly(note: add "vibrate" to list of periphirals) or announcing quietly that someone or something is beh9ind you.
additionally, if you are rolling in cash enough to purchase multiple or bulk human skulls, (or plastic ones.) you could have multiple variations, and name them.
Fred is the tech head. (contains; wireless hub, portable harddrive, hacking softare, webcam etc.)
Judas is my best friend, I carry him everywhere. (rear view detection, webcam, recorder, speech to text conversion, speakers, mic.)
Johnny gaurds my domain. (actuated, on tracks, weapons/laser mounted, webcam, speakers, IR/UV/SONAR/OPTICAL detectors)
Skippy is my watcher. (helicopter blades, weatherproofed(note add weatherproofing.), webcam(good one), recorder, directional mic, wireless connection.) [perch it somewhere and let it sit and watch]