* Lazlow, a recurring [=DJ=] and radio host of ''VideoGame/GrandTheftAuto'', was frst introduced as the put-upon host of the call-in radio show ''Chatterbox''. Later games showcase the breadth of Lazlow's radio career (now spanning 25 years) and reveal him to be an alcoholic fame-seeker, rather than the OnlySaneMan he appeared to be in ''[=GTAIII=]''. By 2008, Lazlow is middle-aged, divorced, despised by his parents as well as his children, and now ekes out a living as an on-the-street "journalist" in Liberty City, decrying the state of America and insulting passerby. As Lazlow's dialogue is written and voiced by real-life radio host Lazlow Jones, this is a form of AdamWesting.
* The titular ''{{Mercenaries}}'' took a page from this in the sequel. What was once a PowerTrio of balanced personalities (Chris the cool customer, Jennifer the conniving money-grubber, and Matthias the pyromaniac) tipped into all three of them behaving like Matthias. ...Who is incidentally [[WolverinePublicity featured on the cover]].
* The Prince in ''VideoGame/PrinceOfPersiaTheSandsOfTime'' was a charming, likable GuileHero. In the sequel, ''VideoGame/PrinceOfPersiaWarriorWithin'', he became the very embodiment of a JerkAss. [[TheyChangedItNowItSucks Needless to say, the fans were NOT pleased.]] In ''VideoGame/PrinceOfPersiaTheTwoThrones'' his level in Jerkass manifests itself as a SuperpoweredEvilSide. At this point the Prince realizes how bad he's gotten and CharacterDevelopment ensues.
* In ''VideoGame/{{Condemned}}'', Ethan Thomas is a nice enough guy, a gifted investigator, but personality-wise, he was never too impolite, despite clearly being under some MAJOR stress. Come the sequel, Ethan's undergone about a year of alcoholism as well as some JerkAss power leveling. He curses all the time and is routinely impolite and distrustful towards everyone who tries to help him. This is in fact underlined by the change in his voice actor and character design (he went from an AmbiguouslyBrown SCU agent wearing a nondescript police uniform, to a rather less ambiguously Caucasian bum in grunge clothes). The personality change is possibly justified by the year of vagrancy and the events of the first game.
** It should be noted that in the intro to the sequel, he mercilessly pummels a guy for bumping into him and spilling his drink [[spoiler: Granted said man was intentionally trying to goad him into a fight, but still]].
* Hubert Ozwell from ''VideoGame/TalesOfGraces'' is regarded to be the king of this trope, and one of the biggest in-series trolls, in the ''Franchise/TalesSeries'' fandom. He starts off as a weak, and easily-terrified little boy, but seven years down the line [[TookALevelInBadass he takes about a million levels in badass]] due to [[spoiler:being adopted into the military-based Ozwell family]]. When he reunites with his older brother, Hubert reveals that [[spoiler:part of the alliance his new nation has with Windol is that they get Lhant, the brothers' homeland, and then Hubert proceeds to [[LimitBreak Blast Caliber]] Asbel into next week, exile him from Lhant, blow their mother off when she tries to intervene, and then sets himself up as the one running the shots]]. The reason for his vitriol, however, is less that he's a military man, and more that he felt he was abandoned by his family in Lhant because they wanted him out of the way. Turns out, Hubert's father [[DaddyHadAGoodReasonForAbandoningYou wanted to spare him from what was going to happen in Lhant]]. Throughout the game, Hubert also [[CharacterDevelopment grows out of it]] and [[TookALevelInKindness takes a level in kindness, too.]]
** Another example from the Tales series is Luke from ''VideoGame/TalesOfTheAbyss''. While a {{Jerkass}} from the very beginning, he does try to get along with the party until Van [[AssInAmbassador gave him the role of Ambassador and lets it get to his head]]. Right after that, he's fed a huge slice of HumblePie in a TraumaCongaLine filled with egregious amounts of MindRape, where he's forced to listen to [[TheReasonYouSuckSpeech venomous insults]] from Asch. It's not until he gets his ImportantHaircut when he pulls [[TookALevelInKindness a complete 180]], and starts getting a lot better.
* Sax from ''[[VideoGame/KingdomHearts358DaysOver2 Kingdom Hearts 358/2 Days]]'' goes from being the emotionless bastard we all know and love to smack around in ''VideoGame/KingdomHeartsII'' to having his behavior borderline monster proportions in regards to Xion. Many were happy to learn that you get to fight him again near the end of the game. His beat down was much deserved. That's what happens when you talk smack about Xion like that. That's right, Roxas kicks your ass. This is especially true because Isa was a pretty decent guy in ''[[VideoGame/KingdomHeartsBirthBySleep Birth By Sleep]]''. The rest of the Org. doesn't really suffer any drastic personality changes beyond losing the ability to truly care about others, yet Isa goes from a stoic but reasonably friendly boy to the cold-blooded Jerkass Sax.
** Some fans have suggested from certain changes in Saix's appearance (the pointed ears, lightened hair color, and perhaps most ominously, yellow eyes) that Isa may have been corrupted by darkness ''before'' he turned into a Nobody, which would certainly explain a lot...
*** [[spoiler: Turns out, this is because Saix is slowly turning into a Xehanort clone.]]
* Sora (briefly) gains a level in jerkass in ''[[VideoGame/KingdomHeartsChainOfMemories Chain of Memories]]'' thanks to [[spoiler: Namine screwing around with his memories.]]
* Eric Sparrow from ''VideoGame/TonyHawksUnderground'' went from the Player's friend to the game's antagonist who was taking credit for everything you did.
** Ironically, between ''THUG'' and ''THUG 2'' he TookALevelInDumbass and is treated as an incompetent loser in the latter.
* Peter Venkman in ''VideoGame/GhostbustersTheVideoGame'' is a huge jerk compared to [[JerkWithAHeartOfGold his occasional niceness]] in [[Film/{{Ghostbusters}} the movies]].
** WordOfGod is that this was partly intentional: he and Dana were having relationship difficulties and were apart at the moment, causing him to be a little... grumpy.
* ''VideoGame/WorldOfWarcraft'': Garrosh Hellscream went from being an obscure emo kid trying to find his purpose in life to being a disrespectful, belligerent, loudmouthed JerkAss.
** He suffers it again in Cataclysm, and randomly becomes racist. Despite not discriminating and even being friendly with the player in Nagrand. In short he's a walking ConflictBall.
** At the same time, he also seems to get rid of a few Jerkass elements too, ironically. For instance, while he is one of the major reasons as to why the war between the Alliance and Horde has reemerged, there are things he simply won't stand for. First off, he specifically does ''not'' approve of Sylvanas raising the newly dead on the battlefield to replenish the ranks of the Forsaken. He also gets really pissed off when he finds out that one of his commanders has been attacking night elf settlements to kill civilians.
** Garrosh will be taking this trope to its logical conclusion in ''Mists of Pandaria''. The final raid dungeon is a siege on Orgrimmar itself by both Alliance and Horde, because everyone is digusted by him [[spoiler:dropping the magical equivalent of a WMD on Theramore, killing many known characters, including [[CanonImmigrant Rhonin]], after killing several Blue Dragons to get the necessary power source for the bomb]]. Many of the Horde factions are ''not'' happy about Hellscream's rule but stay out of fear (trolls, tauren) or greed (goblins). In his speech in ''Jaina Proudmoore: Tides of War'', he doesn't even pretend that the other leaders are his equals and expects them to obey him or die. He wants the Alliance gone and take the lands he believes are rightfuly his (even though orcs are not native to this world). Jaina begs Thralls to take leadership back from Garosh, knowing that many would support him, but Thrall refuses.
*** This, in turn, has an after effect of Jaina finally taking one herself. She loses her [[AllLovingHero all-loving]] part and her rage against the Horde goes to extreme FantasticRacism levels as she tried to flood Orgrimmar with her magic, only to be called out of it by Thrall and Kalegcos. Then when she tried to wind down, she's betrayed again that she initiated the Purge of Dalaran with a glee. [[spoiler:She's gone as far as suggesting the assassination of the new Horde after Garrosh is defeated, which would mean the death of Thrall... something that even Varian ''refused''. In other words, while Varian TookALevelInKindness, Jaina ended up doing the reverse.]]
* Palom was an overeager, boastful, and sort of annoying character in the original ''VideoGame/FinalFantasyIV'', but that was probably excusable on account of him being five years old. In ''VideoGame/FinalFantasyIVTheAfterYears'', though, he's kind of a dick for no readily apparent reason before softening up some.
* Before the [[FullMotionVideo FMV]] games, Admiral Tolwyn, from the ''Videogame/WingCommander'' games and novels, was a gruff but overall fair person. Starting with [=WC3=], though, he became Admiral Asshole (possibly due to {{typecasting}} of Creator/MalcolmMcDowell, the actor that played him), and continued on to [[RecycledInSpace Space]] [[ThoseWackyNazis Nazi]] in [=WC4=]. William Forstchen's {{novelization}}s of those two games tried to lessen that a bit, but was limited by the game scripts he was writing from.
* Nathan Spencer in the 2009 ''VideoGame/BionicCommando'' sequel.
* [[VideoGame/SoulSeries Taki]] takes one between ''Soul Calibur III'' and ''IV''. She goes from hunting demons and fighting those like Cervantes who want the power of Soul Edge to hunting demons and fighting those affiliated with Soul Edge, fighting ex-villains and people affiliated with Soul Calibur, and fighting good guys or neutral parties who ''might'' become affiliated with one of the swords. Nearly every character's story path involves Taki trying to kill them at one point. It's certainly not helped that while she does this she accuses ''everyone'' but herself of being evil and delusional and makes some verbal [[KickTheDog low blows]] against [[TheAtoner Siegfried and Ivy]].
** Within ''Soul Calibur III'''s [[UnexpectedGameplayChange Chronicles of the Sword]] mode, Abelia, your friendly rival at the start of the story and, slightly later, useful ally, turns full tilt into a KnightTemplar halfway through, complete with a costume change and deeper, more aggressive voice bank.
* Liara acts cold and distant in ''VideoGame/MassEffect2'', even if you were lovers by the end of the first game. She also has developed a ruthless streak, and both threatens people with violence and casually has her enemies murdered. If you persist, help her out, and make effort to get her come out of her shell, [[JerkassFacade she eventually reveals that most of her current behavior is a mask,]] [[SurvivorGuilt resulting from losing Shepard in the beginning of the game.]]
** As well, whichever of your human comrades (Ashley or Kaidan) survived the first game will become Jerkasses in their cameo in ''2'', mainly because they've been getting very ugly reports about you working with [[EvilInc Cerberus]] and [[LockedOutOfTheLoop and that it never occurred to anyone else that maybe they should know the whole story]]. Though if it's your love interest that does the WhatTheHellHero speech, they'll send you an apology letter, telling you to be careful because they can't lose you a second time.
** The third game sees the Asari and Salarian Councilors take a few levels in Jerkass (contrast to [[TookALevelInKindness the Turian Councilor]]). They, however, are beaten out by Quarian Admiral Han'Gerrel, who ''power-levels'' in Jerkass to the point of [[GeneralRipper doing positively insane things]] in his attempt to wipe out the Geth, including firing on a Geth Dreadnaught ''while Shepard and Tali are still inside it'' - and Tali is not just a fellow Admiral, she's also the daughter of one of his oldest friends. He also puts his ships and crews in serious danger to force other Admirals to support his reckless actions, because the alternative is losing the heart of the quarian military. If you fail to broker peace between the Quarians and Geth, [[spoiler: he [[LeeroyJenkins has his ships bullrush the geth fleet]]]]. Depending on what choices you made, [[spoiler: they either get massacred or complete wipe out the geth.]]
** Renegade Shepard was always a jerk, and [[TookALevelInJerkass took a level]] in ''2'', but in ''VideoGame/MassEffect3'' it's taken to a ''[[UpToEleven whole new level]].'' While their behavior was usually rude, condescending, racist, insulting, and did kill a number of people, it managed to have some funny moments in ''VideoGame/MassEffect1'' and ''VideoGame/MassEffect2''. In ''3'' Renegade Shepard is downright ''evil'', causes cold-blooded murder of teammates without remorse, and lacks the humor that Shepard had in previous games. You can even tell from the [[http://www.youtube.com/watch?v=sy-eRfupYbA "Commander Shepard]] [[http://www.youtube.com/watch?v=-PjTuSQNLI4&feature=fvwrel is a Jerk]][[http://www.youtube.com/watch?v=c1CV86SnSPM&feature=related " videos.]]
** It's very easy to forget that Councilor Sparatus wasn't actually that bad at first. Harsh yes, but he was reasonable and actually made some good points. It was only after Shepard became a Spectre that he became the unrepentant asshole everyone remembers.
** The Illusive Man was always ''kind of'' a prick, but in the third game he moves from being a morally inconvenient supporter, who could be extremely ruthless but was also one of the few to believe you about the whole "Space!Cthulhu is coming to kill us all" thing, to being an active enemy to the survival of galactic civilization whose forces brainwash new recruits, attempt to murder and/or brainwash your old friends, launch raids on human colonies to abduct new troops, attack Grissom Academy to abduct a multitude of young biotics, and [[spoiler:run a cross between a concentration camp and a Husk factory beneath a ''refugee camp'']], out of a plan to control the Reapers that even a number of his former employees think is flagrantly insane. [[spoiler:Eventually, it turns out he's been indoctrinated, so his more heinous actions are the result of the Reapers screwing with his head, and a fair chunk of his former seeming friendliness was a pose put on to manipulate you.]]
* Maggie's father in ''VideoGame/TheLegendOfZeldaTheWindWaker''. When you first meet him, he's a pitiable pauper who is distraught over his daughter being kidnapped. But when Maggie comes back with a massive fortune in Skull Necklaces, he turns into a selfishly greedy bastard who won't even let Maggie get letters from her (sort of) love interest.
* Ingo from ''[[VideoGame/TheLegendOfZeldaOcarinaOfTime Ocarina of Time]]''. While he was never the friendliest person in the game, he was nothing more than a disgruntled employee who complained about Talon's laziness when Link was a kid. After Ganondorf comes to power, he uses the Evil King's "good" graces to take the ranch for himself, exile Talon to Kakariko Village, and proceeds to generally make life miserable for Malon until Link returns and intervenes.
* Yukari in ''{{VideoGame/Persona 3}}''. She was genuinely {{the cutie}} until FES' "The Answer", where she seems to have gained a [[KnightInSourArmor sour coating]] over her usual sugary sweet self.
** She doesn't become a jerk ass so much as go through a brief FaceHeelTurn
* Zoey in The Passing in ''VideoGame/Left4Dead2''. Compared to her nicer and more open nature in [[VideoGame/Left4Dead the first game]], she becomes outright annoyed and angry with some of the survivors in both teams. [[spoiler: The reason for her change of attitude is her trying to cope with the recent death of Bill.]]
* ''VideoGame/HeavyRain'' has RabidCop Carter Blake and his boss, Captain Perry, becoming this due to their hatred toward ByTheBookCop Norman Jayden.
* Anders takes several levels before and during ''VideoGame/DragonAgeII''. Being [[HumanoidAbomination possessed]] by an increasingly pissed off spirit that had no idea of being nice to begin with and gradually succumbing to it does not help a bit. In Act I, [[BreakTheCutie he's a bit grimmer than before]], but still kindhearted, snarky, and occasionally goofy. In Act II, he eventually [[spoiler:attacks (and kills, unless you stop him) an innocent mage he just saved from templars]] during a bout of UnstoppableRage, [[MyGodWhatHaveIDone panics]], and retreats into a HeroicBSOD. In Act III, he's become completely paranoid of the rest of the party (except for [[TheHero Hawke]] and [[TeamMom Varric]]), quick to swing between manic determination and deep melancholy, is completely obsessed with his cause, and some of the party banter implies he might be hallucinating.
** The Spirit of Justice itself took a few levels in jerkass when it possessed Anders - it's explicitly stated ingame that it was overwhelmed and corrupted by Anders's anger at what was going on, and back in ''VideoGame/DragonAgeOrigins'', it was actually much more reasonable and willing to listen than it is in the sequel. On top of that, it's hard to tell how much of Anders's behavior is this trope and how much is him just plain hugging the IdiotBall, given the increasingly horrible and poorly thought out choices he makes as time goes on.
** Due to how the personality system works, The player character Hawke can slowly change their personality over time to go from a nice paragon hero type or a funny charming neutral type to an aggressive asshole.
* Franchise/CrashBandicoot briefly fell into this trope in ''CrashTagTeamRacing''; numerous bonus cutscenes focus on his ScrewySquirrel antics inside Von Clutch's Motorworld, ranging from feeding Park Drones mouldy apples to disintegrating them in rocket engines. Granted this reversed back in the following game, where he goes back to being a KindheartedSimpleton.
* Ema Skye of the ''Franchise/AceAttorney'' series is introduced as an aspiring forensic investigator, full of useful investigation techniques and eager to meet people in the business. However, eight years later she finds herself in a job she didn't want (detective work) after doing poorly on her forensic investigation exam and her derailed dream definitely takes its toll on her personality. The Ema of ''VisualNovel/ApolloJusticeAceAttorney'' is a sour and jaded woman who doesn't offer much help (unless she can use some of her forensic investigation techniques, at which point some of her original personality leaks out).
* Cloud does this between ''VideoGame/CrisisCore'', in which he's a shy, brave, and supportive person with really bad self-esteem (with some backstory about him picking fights with the people who bullied him in his hometown), and ''VideoGame/FinalFantasyVII'', in which he's a rude, cocky, reckless and obsessive person who deliberately antagonises his friends Barret and Wedge and does things like taking salary from a slum-dwelling little girl's school money. He's nicer to the girls, but also pretty sexist and won't trust them with anything on their own. He gets a lot nicer after a few hours of play, but he remains vengeance-obsessed and arrogant until his [[HeroicBSOD entire persona implodes]] halfway through the next disk.
* In VideoGame/{{Touhou}}, Kawashiro Nitori went from [[InformedFlaw supposedly shy]], eccentric, and helpful gadgeteer to [[FantasticRacism racist]] AlphaBitch HollywoodAtheist who openly gloats about swindling humans out of cash - all in the span of three games.
* In ''VideoGame/ShinMegamiTenseiIV'', Lucifer is far, ''far'' more cruel and insulting than he's ever been in previous installments. Even [[KnightTemplar Merkabah]] expresses pity and sympathy for Flynn when [[spoiler:he's forced to kill Isabeau]] in the Law route. In the Chaos route, Lucifer coldly brushes off [[spoiler:Isabeau's death]] as if it was nothing.
* While in real life Dudley from Franchise/StreetFighter TookALevelInKindness between [[VideoGame/StreetFighterIII III]] and [[VideoGame/StreetFighterIV IV]], IV takes place before III, meaning in the game's chronology Dudley went from being exceedingly polite to acting more snooty and calling opponents "gutter trash" (though he zig-zags back slightly by Third Strike.)
* In ''[[VideoGame/BioShockInfinite BioShock Infinite's]]'' DLC, ''BioShockInfinite/BurialAtSea'', Elizabeth is much ruder to [[spoiler:this version of]] Booker than she was in ''Infinite''. [[spoiler:Turns out that it's deliberate, since you're not playing as Booker, you're playing as an ''alternate version of Comstock'' who had taken up the 'Booker' persona.]]
* Happens to entire races in ''VideoGame/TheElderScrollsVSkyrim''. The Nords, once a race of proud, BoisterousBruiser "come share a tankard of mead" vikings, have become bitter, disillusioned and angry to everyone who isn't them. Any northern human who doesn't fit their mentality that Skyrim belongs to the Nords is shunned as [[NoTrueScotsman not a true Nord]]. The [[OurElvesAreBetter Altmer]] are even worse: they were already haughty, but the Thalmor have taken on a doctrine of human hate almost to the point of outright hostility. Worth pointing out that [[StopBeingStereotypical not all elves associate with the Thalmor, though]].
* Tails, inexplicably, does this in VideoGame/SonicLostWorld. The [[ThePollyanna childlike naivete]] and [[HumbleHero humility]] that defined him in previous titles was spontaneously replaced with a [[InsufferableGenius smug]], [[ItsAllAboutMe self-centered]], obnoxious, whiny, and [[ObnoxiousSnarker snarky]] attitude. [[spoiler: He had a falling-out with Sonic because he was interested in teaming up with Dr. Eggman to corrale the Deadly Six, even though he was [[SonicAdventureSeries perfectly]] [[SonicHeroes fine]] [[ShadowTheHedgehog with it]] before!]] The worst part is that he never owns up to it at the end of the game.
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