History FaceHeelTurn / VideoGames

* Most of the remaining humans in the [[DeathWorld Vortex World]] in ''VideoGame/ShinMegamiTenseiIIINocturne'' once the true stakes are revealed. Hikawa was evil to begin with, then Isamu sacrifices Hijiri to summon Noah and Chiaki sics her angelic army on the Manikin city of Mifunashiro to summon Baal Avatar.
** In ''VideoGame/{{Persona 4}}'' [[UpdatedRerelease Golden]], ''the protagonist himself'' can go through one if he makes friends with [[spoiler: Tohru Adachi]] before realizing he's the killer, [[spoiler: confronts him (instead of keeping his thoughts to himself]] and ''then'' [[spoiler: aids Adachi via destroying crucial evidence.]] [[spoiler: This unlocks the "Accomplice ending": it has Adachi becoming a KarmaHoudini for the murders and even ''taunting the protagonist'' before he (the MC) leaves Inaba.]] Doing so actually gives a decent reward for a NewGamePlus. At the very least, it's much more cost effective than what you get in the true ending.

** While it's very common for enemy units to defect to your side in battle, it's far rarer for player units to turn against you... but it does happen.

* ''VideoGame/FireEmblem'':

** In ''VideoGame/MarioAndLuigiSuperstarSaga'' [[spoiler: Birdo]] pulls out a FHT after helping the Mario Bros. earlier. Another FHT happens in ''[[MarioAndLuigiBowsersInsideStory Bowser's Inside Story]]'', when [[spoiler: Sergeant Guy, Corporal Paraplonk and Private Goomp]] betray [[VillainProtagonist Bowser]] and switch over to [[BigBad Fawful's]] side.

** Chelnov from ''VideoGame/AtomicRunner'' did this trope himself as the final boss of ''VideoGame/FightersHistoryMizoguchiKikiIppatsu''.

** Chelnov from ''Atomic Runner'' did this trope himself as the final boss of ''Fighters History: Mizoguchi Kiki Ippatsu''.

* ''VideoGame/TheTuringTest'': Depending on how you see the morality of the situation, [[spoiler: Ava agreeing to let Sara sever her from TOM's control rather than obeying TOM's instructions to restrain Sara]] can be seen as this. In fairness, [[spoiler: she never made any secret of how she felt about her mission - it seems that TOM was just hoping that when the time came, she ''wouldn't'' perform this trope after all.]]

** In ''VideoGame/{{Persona 4}}'' [[UpdatedRerelease Golden]], ''the protagonist himself'' can go through one if he makes friends with [[spoiler: Tohru Adachi]] before realizing he's the killer, [[spoiler: confronts him (instead of keeping his thoughts to himself]] and ''then'' [[spoiler: aids Adachi via destroying crucial evidence.]] [[spoiler: This unlocks the "Accomplice ending": it has Adachi becoming a KarmaHoudini for the murders and even ''taunting the protagonist'' before he (the MC) leaves Inaba.]] Doing so actually gives a decent reward for a NewGamePlus. At the very least, it's much more cost effetive than what you get in the true ending.

* ''Franchise/FireEmblem'':
** Hardin and his cronies from ''[[VideoGame/FireEmblemAkaneia Fire Emblem: Mystery of the Emblem]]''. In ''[[UpdatedRerelease New Mystery of the Emblem]]'', his cronies can be [[HeelFaceTurn re-recruited]]. [[BrainwashedAndCrazy Hardin]] himself, however, cannot.
** Alvis from ''[[VideoGame/FireEmblemJugdral Fire Emblem: Genealogy of the Holy War]]'' though he was more of an AloofAlly to your party.

* Happens to [[spoiler: Salem]] in the 3rd game {{Army of Two}}: The Devil's Cartel, and he is also the final boss in the game.

* Both Big Boss and Zero certainly qualify with regard to the MetalGear series. One became the leader who of a mercenary nation who start war and is the antagonist for the first two game, while Zero and his Patriots are the antagonist behind the other numbered games. All because the Boss died.

** Between the events of ''[[VideoGame/TheElderScrollSIVOblivion Oblivion]]'' and ''[[VideoGame/TheElderScrollsVSkyrim Skyrim]]'', the [[LizardFolk Argonians]] pull one of these if one considers [[TheFederation the Septim Empire]] as the "face" side of things and the [[AntiHumanAlliance Aldmeri Dominion]] as the "heel." (Which, while the Empire has its flaws, is still very much the [[BlackAndGrayMorality "gray" to the "black"]] of the [[ANaziByAnyOtherName outright fascist]] Dominion.) After [[ChekhovsVolcano Red Mountain's eruption]], the Dominion influenced the Argonians to attack Morrowind and [[SlaveRace get revenge over millennia of slavery]] and to free the remaining illegal slaves there, as well as to capture Morrowind's valuable [[FantasyMetals Ebony deposits]]. The Dominion profited in further weakening the Empire by tearing away two more provinces (Argonia seceding and then capturing what was left of Morrowind).

* ''VideoGame/TheElderScrollsIIIMorrowind'':
** In the {{backstory}}, BigBad Dagoth Ur was, as the mortal Voryn Dagoth, a trusted advisor to the ancient Chimeri/Dunmeri hero, [[FounderOfTheKingdom Lord Nerevar]]. [[TheRashomon Though there are many different versions of events]] from WhenItAllBegan, most have Dagoth aiding Nerevar in infiltrating the [[OurDwarvesAreDifferent Dwemer]] Red Mountain stronghold. There, they found the [[CosmicKeystone Heart of Lorkhan]] and the [[ArtifactOfDoom Tools of Kagrenac]], with which the Dwemer attempted to tap into the Heart's power but caused their entire race to disappear mysteriously. Dagoth was tasked with guarding the Tools while Nerevar consulted with his other advisors, the Tribunal, and his [[OurGodsAreDifferent Daedric patron]], Azura. However, Dagoth was corrupted by the Heart and Tools, using them to become a PhysicalGod. His physical form was destroyed by either Nerevar or the Tribunal depending on the telling, but he coalesced in the millennia that followed before returning. (One telling of the events has him as a FallenHero and WellIntentionedExtremist, refusing to let the Tribunal use the Tools after they murdered Nerevar, and only used them himself out of spite due to their betrayal.)
** In the ''Tribunal'' expansion, this is revealed to be the case for [[PhysicalGod Tribunal deity]] [[spoiler:Almalexia]], who serves as the expansion's BigBad. In ages past, she heroically defended Morrowind against Daedric, Akaviri, and Imperial threats. However, after she and the other Tribunes were cut off from the Heart of Lorkhan, the [[DeityOfHumanOrigin source of their divine power]], they've been steadily weakening. Finally, as a result of the main game's main quest, [[spoiler:she is cut off from the Heart permanently]]. The ''loss'' of her divine powers causes her to GoMadFromTheRevelation. [[spoiler:She kills fellow Tribune Sotha Sil, tries to kill [[PlayerCharacter the Nerevarine]], and plans to kill her other fellow Tribune Vivec]].

* This isn't a trope that Starscream in TransformersWarForCybertron would go down as he's more related to TheStarScream, but he starts out as an Autobot Scientist at the beginning of the Decepticon campaign. After Megatron bests his defenses, Starscream switches from the Autobots to the Decepticons. He later pulls his own trope off.

* Sorbet in ''MagicalStarsign'' fakes one as part of an elaborate plan to trick the Big Bad, and it's so convincing that even your party falls for it...unfortunately, you waltz in just as her plan is about to come to fruition.

* In ''VideoGame/TheElderScrollsIIIMorrowind'''s ''Tribunal'' expansion, this is revealed to be the case for [[PhysicalGod Tribunal deity]] [[spoiler:Almalexia]], who serves as the expansion's BigBad. In ages past, she heroically defended Morrowind against Daedric, Akaviri, and Imperial threats. However, after she and the other Tribunes were cut off from the Heart of Lorkhan, the [[DeityOfHumanOrigin source of their divine power]], they've been steadily weakening. Finally, as a result of the main game's main quest, [[spoiler:she is cut off from the Heart permanently]]. The ''loss'' of her divine powers causes her to GoMadFromTheRevelation. [[spoiler:She kills fellow Tribune Sotha Sil, tries to kill [[PlayerCharacter the Nerevarine]], and plans to kill her other fellow Tribune Vivec]].

* [[spoiler:Almalexia]] did this at some point prior to the ''Tribunal'' expansion to ''VideoGame/TheElderScrollsIIIMorrowind'', due in large part to loss of access to the Heart of Lorkhan.

* ''VideoGame/SoulCalibur'': someone is doing one of these every five minutes. We have Siegfried, who did a Face to Heel (before the series even started) to Face to Heel to Face to WellIntentionedExtremist Heel...and then back to Face again. Then there's Yun-Seong, who isn't all the way there yet, but he's getting there. Raphael, who did a Face Heel turn from 2 to 3, and did a Heel/Worse Heel turn from 3 to 4. Sophitia has done this in 4: arguably she has a good reason, but as she has been infused with the power of Soul Edge, there's nothing saying that she might not like this state of affairs later on. Then you've got Pyrrha, who went from Face to Heel (somewhat against her will) and then back to Face, and then BACK to Heel, before finally settling on Face.

* [[spoiler:Wheatley, who becomes DrunkWithPower after the core transfer with [=GLaDOS=]]] in ''VideoGame/{{Portal 2}}''. In fact, the audio files for these lines have "heel turn" in their names. [[spoiler:It's especially painful because the betrayal happens actively onscreen, with him suddenly and dramatically JumpingOffTheSlipperySlope.]]

** The PSP game ''CrisisCore'' (where you play as Zack, the guy Cloud absorbed the personality of) portrays this moment at the end. You even get to see Sephiroth before he went batshit. There's quite a few of the villains that do a HeelFaceTurn.

* Jerry Ying from the JohnWoo game ''VideoGame/{{Stranglehold}}'', who starts out as Tequila's partner and ally inside Wong's Dragon Claw syndicate, only to [[spoiler:[[GoingNative go native during the Chicago History Museum stage]] and carry out Wong's orders to kill Tequila and [[OffingTheOffspring Billie, Wong's own daughter]]. Tequila survives, but Billie isn't so lucky, setting up a furious showdown between partners as Tequila seeks vengeance for Billie]].

* In VideoGame/KidIcarusUprising, [[spoiler: Pyrron]] is just your everyday, LargeHam, [[KillItWithFire fire happy]] [[spoiler: sun god]]. He's just about the only guy who knows what the [[spoiler: Auron]] are all about, and while he's mostly an idiot, he certainly knows how to make them hurt. [[spoiler: Until you reach the Auron brain, and in the middle of the boss fight he dives right in and completely takes over the alien hive mind.]]

** ''VideoGame/MortalKombatX'' sees several good characters go heel. Kung Lao, Kitana, Smoke, Kabal, Stryker, Nightwolf, and Liu Kang end up staying as revenants, while Scorpion does a HeelFaceDoorSlam. Raiden himself goes rogue, after his HeroicSacrifice at the end of ''MKX''.