History UnintentionalPeriodPiece / TurnOfTheMillenniumVideoGames

* The inclusion of shows that were airing at the time of the games' release but have since ended such as ''WesternAnimation/DannyPhantom'' and ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' solidly dates the ''VideoGame/NicktoonsUnite'' series to the mid-2000s - while characters from said shows have appeared in later {{Creator/Nickelodeon}} games, it's unlikely they'd be the central focus if the series was made today. Especially notable with ''Toybots'' and ''Globs of Doom'''s focus on ''WesternAnimation/TakAndThePowerOfJuju2007'', a series that only lasted one season, was critically panned and is highly obscure by modern standards. It's also definitely the only time when ''WesternAnimation/TheFairlyOddParents'' (heavily pushed in that era, a forgotten and oft-mocked afterthought any time thereafter due to a legendary case of SeasonalRot) would have ever been trumpeted as a major player in the game. Tellingly, ''VideoGame/NickelodeonKartRacers'' and ''VideoGame/NickelodeonAllStarBrawl'' (released in 2018 and 2021 respectively) don't feature ''The Fairly [=OddParents=]'' at all.

* ''Creator/TomClancy's VideoGame/SplinterCell'' dates itself as a product of the 2000s almost entirely on its premise of a newly-formed secret wing of the NSA undertaking field operations for "aggressive intelligence gathering", which takes the form of stealth-based gameplay similar to what ''VideoGame/MetalGear'' and ''VideoGame/SyphonFilter'' had been doing for a while. It dates itself not only in its rather nebulous and fantastical idea of what the NSA actually does, echoing the sudden prominence of, yet lack of knowledge about, the organization at the time - had the series started in any other time period, Third Echelon probably would have been either part of the CIA or an entirely independent operation that answered directly to the President - but ''also'' for the fact that the games for the most part present Third Echelon and the NSA in a positive light,[[note]]even at worst, where the protagonist is embedded in a domestic terrorist organization in ''[[VideoGame/SplinterCellDoubleAgent Double Agent]]'', the NSA [[AllianceMeter loses trust in him]] if he [[BecomingTheMask acts the part too much]][[/note]] which would be completely unheard of following the scandal surrounding the real NSA's warrantless wiretapping. Interestingly, the games were somewhat ahead of the curve in that regard, since several missions ''do'' involve Sam infiltrating allies without express approval from the Joint Chiefs, up to and including the headquarters of the CIA in [[VideoGame/SplinterCell1 the first game]] and of a PMC with several ties to and contracts with the government in [[VideoGame/SplinterCellChaosTheory the third]], though these all got a pass at the time because the player knows the reason is for the "greater good".[[note]]e.g. the CIA mission is to trace a possible intelligence leak, so they can't tell anyone what they're doing without risking the leak finding out and hiding evidence.[[/note]]

* Even the ''Grand Theft Auto''-inspired video game adaptation of ''VideoGame/TheWarriors'' from 2005 falls victim to this thanks to its anachronisms. Yes, it's set in the late '70s and based on a movie from that time period (which was itself inspired by a book from the '60s, for that matter), and for the most part it's pretty good about being period-accurate... until you get to that level set in the South Bronx and see, amidst a bunch of punks with Afro and shag hairstyles, one guy with a ''very'' TurnOfTheMillennium-appropriate soul patch. Plus, there's a comic relief scene set in Brooklyn with a thug [[TalkingInYourSleep mumbling in his sleep]] and suddenly moaning "I don't wanna ride the pony!" -- obviously a ShoutOut to a similar scene in ''WesternAnimation/ToyStory1'' (1995), which was still an ongoing film series at the time.

* The inclusion of shows that were airing at the time of the games' release but have since ended such as ''WesternAnimation/DannyPhantom'' and ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' solidly dates the ''VideoGame/NicktoonsUnite'' series to the mid-2000s - while characters from said shows have appeared in later {{Creator/Nickelodeon}} games, it's unlikely they'd be the central focus if the series was made today. Especially notable with ''Toybots'' and ''Globs of Doom'''s focus on ''WesternAnimation/TakAndThePowerOfJuju2007'', a series that only lasted one season, was critically panned and is highly obscure by modern standards. It's also definitely the only time when ''WesternAnimation/TheFairlyOddParents'' (heavily pushed in that era, a forgotten and oft-mocked afterthought any time thereafter due to a legendary case of SeasonalRot) would have ever been trumpeted as a major player in the game. Tellingly, ''VideoGame/NickelodeonKartRacers'' and ''VideoGame/NickelodeonAllStarsBrawl'' (released in 2018 and 2021 respectively) don't feature ''The Fairly [=OddParents=]'' at all.

* The inclusion of shows that were airing at the time of the games' release but have since ended such as ''WesternAnimation/DannyPhantom'' and ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' solidly dates the ''VideoGame/NicktoonsUnite'' series to the mid-2000s - while characters from said shows have appeared in later {{Creator/Nickelodeon}} games, it's unlikely they'd be the central focus if the series was made today. Especially notable with ''Toybots'' and ''Globs of Doom'''s focus on ''WesternAnimation/TakAndThePowerOfJuju2007'', a series that only lasted one season, was critically panned and is highly obscure by modern standards. It's also definitely the only time when ''WesternAnimation/TheFairlyOddParents'' (heavily pushed in that era, a forgotten and oft-mocked afterthought any time thereafter due to a legendary case of SeasonalRot) would have ever been trumpeted as a major player in the game.

* The inclusion of shows that were airing at the time of the games' release but have since ended such as ''WesternAnimation/DannyPhantom'' and ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' solidly dates the ''VideoGame/NicktoonsUnite'' series to the mid-2000s - while characters from said shows have appeared in later {{Creator/Nickelodeon}} games, it's unlikely they'd be the central focus if the series was made today. Especially notable with ''Toybots'' and ''Globs of Doom'''s focus on ''WesternAnimation/TakAndThePowerOfJuju2007'', a series that only lasted one season, was critically panned and is highly obscure by modern standards. It's also definitely the only time when ''WesternAnimation/TheFairlyOddParents'' (heavily pushed in that era, a forgotten and oft-mocked afterthought any time thereafter) would have ever been trumpeted as a major player in the game.

* The inclusion of shows that were airing at the time of the games' release but have since ended such as ''WesternAnimation/DannyPhantom'' and ''WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius'' solidly dates the ''VideoGame/NicktoonsUnite'' series to the mid-2000s - while characters from said shows have appeared in later {{Creator/Nickelodeon}} games, it's unlikely they'd be the central focus if the series was made today. Especially notable with ''Toybots'' and ''Globs of Doom'''s focus on ''WesternAnimation/TakAndThePowerOfJuju2007'', a series that only lasted one season, was critically panned and is highly obscure by modern standards.

* ''VideoGame/MarvelVsCapcom2'' (2000) came out in the waning days of the era where ''Franchise/XMen'' was Marvel's biggest CashCowFranchise, and it really shows in the roster: [[SpotlightStealingCrossover eighteen of the 28 Marvel representatives]] hail from that series in some sense, including two versions of ComicBook/{{Wolverine}}. The really telling part is the presence of Marrow, though; an absolute E-lister who wouldn't warrant an appearance even in a purely ''X-Men'' fighting game nowadays, but she was actually getting something resembling a push in the mid-late 90s [[ShooOutTheNewGuy (one that did not last)]].