The Wachowski Brothers are a program designed to explain the Matrix to those who do not completely understand. They do not take sides, but are the ones who write and add features to the Matrix. They are the first program designed by the Machines, but are superior rather than inferior as they have managed to escape being replaced. When Neo destroyed Agent Smith, the Wachowski Brothers appeared and immediately changed the events of the fight. They appeared as single-color sprites similar to what might be found in a pre-8-bit game. Instead of having Neo die, like they originally planned, they made the Mega-Smith, which Neo fought and eventually destroyed.