The G.L.M., Galvanic Lifter Machine, aka GOLEM, was a construction robot. It was two stories tall and weigh 13 tons. GOLEM was remotely controlled by halo.
Having been bullied by Nelson Nash too many times, Willie Watt takes his father's advice to "hit [a guy] where it hurts" and steals the GOLEM to interrupt Nelson and Blade Sommers's date by crushing Nelson's car. Batman electrifies it, causing its circuits to fry and a feedback loop to the control headband. The GOLEM is soon impounded.
Willie soon finds out that he has a telepathic link to the GOLEM. He tests it out on a game of Jokerz, scaring them away. He soon uses it to get more greater revenge on nelson when he is pushed into the water. He then turns his attention to his father, who he hates more. Batman destroys it with a rocket ride. Willie cried over his only "friend". He later finds out in juvenile hall that he has telekinetic powers.
Something that looks similar to the GOLEM appeared in the background when Terry went to the factory to get a replacement synthoid in "Terry's Friend Dates a Robot."