Master Computer

A very popular one episode villlain in the cartoon series Dexters Labratory. Master Computer only appears in the episode of the same name. He was a boss (the only boss) on a game that Dexter mastered when he was three, the game was very primiteve so he discarded it as soon as he beat it. Years later, Dexter's dad re aquired the game, and, athough dexter did not want to play it again his sister dee dee chalenged him to a game of it (which he comicaly lost in a matter of seconds without doing any damage to dee dee's character at all). After being defeated by Dee Dee, Dexter tried to remove the game from his lab system (which he and his sister had been using to play the game), but the game boss, Master Computer, came to life and absorbed all the power in the lab to become a powerfull villain bent on world domination. Master Computer planed to kill Dexter and than use the energy from Dexter's lab to rule the world, but Dexter got the help of his sister Dee Dee, who beat Master Computer with little effort. After defeat, Master Computer turned back into a harmeless, lifeless game boss.

It seems that Master Control was a parody of the disney villain from tron Master Control Program