Tomy's Omnibot was number two in their line of big fat robots. Omnibot was motorized and rechargeable-battery powered. It went forward and back, turned round and ran on the carpet too.
Omnibot could play tapes and it had great robot sound effects and blinking big light up eyes.
You could use Omnibot's remote control to talk through the robot (mic/speaker) and it made your voice sound robotic!