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''Yars' Revenge'' is a TopDownView ShootEmUp for the UsefulNotes/{{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.

The game itself started as a port of ''VideoGame/StarCastle'', and still has some of its gameplay elements, such as the main enemy hiding behind a shield, and a smaller enemy chasing you around. You play a Yar, a giant fly that shoots energy missiles. On the right side of the screen is the Qotile, surrounded by a shield. You can shoot away the shield, or come right up to it and ''eat'' it. Once you have destroyed enough of the shield, you call in the Zorlon Cannon. Different variations of the game have different methods for calling the cannon. Once you have called the cannon, you position it by moving the Yar up or down. The Qotile is always moving up or down, and the Zorlon fires a PainfullySlowProjectile, so you have to LeadTheTarget carefully. Then you fire it, and get out of the way or you will [[HoistByHisOwnPetard kill yourself with your own cannon]].

The Qotile cannot directly harm you[[note]]In fact, touching it is one of the ways to call the Zorlon Cannon[[/note]], but it does launch a Destroyer Missile that chases you around. From time to time, the Qotile will also turn into a Swirl, that fires at you at high speed. In the center of the screen is a Neutral Zone, where you are safe from the Destroyer Missile, but not the Swirl (being that it is a planet-annihilating weapon), and where you cannot fire. And that includes not being able to fire the Zorlon Cannon.

The game is [[EndlessGame endless]], and the only objective is ScoringPoints. More points are awarded for hitting the Swirl with the Zorlon Cannon than hitting the Qotile, and more still are earned for hitting a Swirl in mid-flight (not easy considering that both the Swirl and your own Zorlon Cannon can kill you).

Alternating levels have different shield types. Higher difficulty levels cause the Qotile to become the Swirl more often. But the Red Swirl is always the swiftest and deadliest.

An anime re-imagining by Atari that made the InsectoidAliens more humanoid was released on XBoxLiveArcade and PC April 13th, 2011. A scheduled UsefulNotes/PlayStationNetwork release has been delayed.

In a bizarre WhereItAllBegan [[BookEnds Book End]], a former Atari employee has [[http://www.kickstarter.com/projects/698159145/atari-2600-star-castle created what Warshaw said was impossible]]: an Atari 2600 port of ''Star Castle'' that works and doesn't "suck".

!!''Yars' Revenge'' provides examples of:

* AllThereInTheManual: The original game included a mini-comic that explained the story, and exactly why the Yars were gunning for {{revenge}}.
%%* {{BFG}}: The Zorlon Cannon.
%%* DeflectorShields: An edible one, no less.
* DifficultyLevels: Four, with one and two player variations.
* EasterEgg: If you kill a Swirl in mid-air, a black vertical line appears where the Swirl died. It's a WarpZone, and if you move along it at just the right time and place, it takes you to an ending screen with programmer Howard Scott Warshaw's initials, spelled both forwards and backwards ("HSWWSH"). Unfortunately, it's also an automatic "Game Over".
%%* EndlessGame
%%* EnergyWeapons
%%* ExcusePlot
%%* ForMassiveDamage: The Zorlon Cannon.
* HoistByHisOwnPetard: You, if you don't get out of the way of the cannon projectile.
* InsectoidAliens: Justified in that they're Earth insects that got mutated into intelligent beings while in space. In the remake, they're still mutant Earth insects, but they look like 4-armed humans with wings and antennae
%%* Instant180DegreeTurn
* JustifiedExtraLives: Always another Yar to send out there.
* LeadTheTarget: Shooting the Qotile with the Zorlon Cannon.
%%* OneBulletAtATime
%%* OneHitPointWonder
* PainfullySlowProjectile: The Zorlon Cannon, which works both for you and against you. For you, in that it gives you time to get out of the way; against you, in that you have to set up a shot against a moving target.
%%* ScoringPoints
%%* ShootEmUp
* ShoutOut: To Atari CEO Ray Kassar. Yar and Razak are Ray's name spelled backwards. Also the [[Franchise/StarTrek Neutral Zone]], and {{Tron}}s, which are used in some variations to call the Cannon.
* SpiritualSuccessor: to ''VideoGame/StarCastle''. ''Yars' Revenge'' originally started out as a direct port of ''Star Castle'', but it changed a lot during development.
%%* TopDownView
%%* WrapAround: Vertical only.
* WritingAroundTrademarks: As noted above, this was supposed to be a port of ''Star Castle'' when the licensing deal fell through. Howard Scott Warshaw decided to rework it into an original game.

!!The reimagining (called ''"Yar's" [[note]] The placement of the apostrophe is important[[/note]] Revenge'') provides examples of:

%%* {{Animesque}}
%%* BareYourMidriff: Yar.
* BloodKnight: Yar qualifies big time. Seen most clearly in stages 2 and 3.
** Stage 2: The Qotile unit commander, wanting to make sure the Ankine queen is destroyed, orders the charging of the Zorlon Cannon, and tells Yar to retreat and leave the Qotile superweapon to kill the queen. Yar refuses, wanting to kill her herself. Cue the BossBattle!
** Stage 3: Yar reluctantly runs away or hides when Bar-Yargler tells her to stay away from the Qotile dreadnoughts, but ultimately grows fed up and, when one of them notices her, she attacks it with all she has. Cue BossBattle!
* DeadpanSnarker: Bar-Yargler is very good at snarking. Yar picks up the habit herself while talking to him, though she can't match his zingers.
* ADogNamedDog: Yar is a member of a race known as the Yars.
* InNameOnly: There is some stuff from the original that remains here (namely, there are the Yars, the Qotile, the Zorlon Cannon, the Yar homeworld is still called Razak), but [[http://www.joystiq.com/2010/11/16/yars-revenge-remade-into-an-anime-inspired-rail-shooter/ most of it has been reimagined, including the gameplay, to the point that you wouldn't think that the original game and this one had much of a link between each other]].
* MidSeasonUpgrade: Yar gets a new armor in the beginning of Stage 3. Later on, she also gets the Zorlon Cannon.
%%* NotSoStoic
%%* RoaringRampageOfRevenge: As suggested by the title.
* SamusIsAGirl: Yar is now a woman with insect wings.
* SlaveRace: Yar's race was once independent, but then the Qotile came to Razak and waged war against them. By the end of the war, the Yars that remained (Including the protagonist) were brainwashed into believing they were subservient to the Qotile.
* ThirdPersonPerson: A variation with Yar who refers to herself as "this-one" (sic); also the villains.