Yars' Revenge is a video game released for the Atari 2600 in 1982. It was created by Howard Scott Warshaw. Yars' Revenge is Atari's best-selling original title for the 2600, although it was outsold by the licensed game Pac-Man. 

The player controls an insect-like creature called a Yar who must nibble or shoot through a barrier in order to fire his Zorlon Cannon into the breach. The objective is to destroy the evil Qotile, which exists on the other side of the barrier. The Qotile can shoot at the Yar, even if the barrier is undamaged, by turning into the Swirl. The player is warned before the shot is fired, and he can retreat to a safe distance to dodge the enemy's energy blast. The Yar can hide from a pursuing destroyer missile within a "neutral zone" in the middle of the screen, but the Yar cannot shoot while in the zone. The Swirl can kill the Yar anywhere, even inside the Neutral Zone.

To destroy the Qotile or the Swirl, the player has to either touch the Qotile or eat a piece of the shield to activate the Zorlon Cannon, aim the cannon by lining up with the Qotile or Swirl, then fire the cannon and fly out of the way of the cannon's shot.

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