When Robby Walks:

Dome Lamp  and Mechanical Brain are lighted, Voice Tubes Flash Blue, Heart Box Star Drive and Geneva Movement Device are lighted , Mechanical Sax Valves Cycle, Scanner Rings Rotate

When Robby Stops:

Blaster light pulsates, Blaster sound and pulsates Weapon arm moves with spraying action, Flashing Voice Tubes go Dark, Dome Lamp and Mechanical Brain are Lighted, Heart Box Star Drive and Geneva Movement Devices continues to be lighted Mechanical Sax Valves continue to cycle and scanners ring rotate