Eye Stalks

The Eye Stalks are a type of laser defense grid on the Sphere.

Overview
Eye Stalks are highly advanced laser security system. When the laser projected from one of these stalks is broken it activates a nearby turret to attack the being who broke it. The laser on it's own is harmless to Tommy. The Eye Stalks come in two variations: stationary and horizontally moving laser. The Eye Stalks can't be destroyed by Tommy.

Design
Eye Stalks are made of circular metal wheel with a device in the middle, which shoots red laser out of it.