Anti-infantry mech. It turns one soldier into a force that can take out several enemy minifigs, small hardsuits or Octavius suits, and automobiles.
The eyeball cockpit design is based on Brucey-Wan's sphere.
In my opinion, the best idea you put into this mech is the ejectable/interchangeable cockpit. I could definitely see that cockpit system on stationary turrets, airship mounted lasers (like on a republic gunship), even small fighters.