Wikisimpsons - The Simpsons Wiki
In the show, parent-child teams compete by building robots and having them fight each other. The show's primary audience is teenage boys and their fathers. However, Moe Szyslak was seen among the studio audience. When he was asked if he was attending with his son, he sarcastically replied that he had two children, "Screw" and "You", making a fist as he said each word.
Bart first watched Robot Rumble on satellite television. In that episode, two robots were fighting, one of them equipped with circular saws for hands and the other with claw-like arms it spun around in a windmill-like fashion as it attacked. The robot with the saws asked why they should fight each other, when together they could defeat the humans. The other robot agreed, turned his back on his opponent, and advanced toward the screen which separated the robots from the audience. As the people in the audience gasped, the robot with the saws split the other in half and said "Sucker!" as the two halves fell to the floor. Later, Bart and Homer competed on the show.
 List of Robots
When Bart and Homer competed on Robot Rumble, the following robots were seen:
 Championship Fight
The championship fight was between Killhammed Aieee and Chief Knock-A-Homer. Killhammad Aieee smashed Chief Knock-A-Homer open, revealing that Homer was inside. Killhammad Aieee then refused to finish the fight because it had been programmed with the Three Laws of Robotics and was thus forbidden from attacking a human being. The announcers declared the fight to be a draw, which frustrated and enraged the studio audience.