Yars' Revenge is a Top Down View Shoot'Em Up for the Atari 2600. Written by Howard Scott Warshaw and released by Atari in 1982, it became the 2600's best-selling original title. An included comic book sets up the plot: Yars began as ordinary Earth houseflies, who hitched a ride aboard a human spacecraft on a mission to the Razak solar system. The mission ended in catastrophe, but the flies escaped and mutated into super-beings that built advanced civilizations on three of the Razak system's planets. To protect themselves, they created a BFG called the Zorlon Cannon. But before the cannon was finished, an enemy called the Qotile attacked and destroyed one of the planets. So now the Yars must get their revenge by destroying the Qotile.