[[quoteright:350:[[VideoGame/SonicGenerations http://static.tvtropes.org/pmwiki/pub/images/Classic_and_Contemporary_Posing_Smaller_5538.jpg]]]]
[[caption-width-right:350:Through [[GrowingTheBeard ups]], [[DorkAge downs]], and [[MemeticMutation all]]-[[ThemeParkLandscape arounds]], [[LongRunners still unstoppable after over twenty years!]]]]

->''"I'm Sonic, Sonic the Hedgehog!"''
-->-- '''Sonic''', in various games.

''[-If you were looking for the first game in the series, see VideoGame.SonicTheHedgehog1. If you were looking for the 2006 game of the same name, see VideoGame.SonicTheHedgehog2006.-]''

A fast blue hedgehog, a two-tailed fox, and a red echidna who protects a bunch of GreenRocks go down to the local pub. A [[MadScientist floating fat man with a penchant for robots]] bursts in on their Happy Hour martinis to announce his schemes to TakeOverTheWorld with aforementioned GreenRocks. The hedgehog, fox, and echidna put down their drinks, mutter something along the lines of "[[PrecisionFStrike Aw, ]]''[[PrecisionFStrike hell ]]''[[PrecisionFStrike naw!]]", and proceed to kick the floating fat man's ass from here to New Brunswick. Rinse and repeat, adding [[LoadsAndLoadsOfCharacters lots and lots more characters]] (some of which can be found [[Characters/SonicTheHedgehog here]]).

That's SonicTheHedgehog in a nutshell--well, except for the pub part ([[{{Dissimile}} and the "hell, naw" part]]... [[VideoGame/ShadowTheHedgehog usually]]). Created in 1991 for the then-fledgling Creator/{{Sega}} [[UsefulNotes/SegaGenesis Genesis]] (and not-so-fledgling UsefulNotes/SegaMasterSystem) by a group of fifteen people tasked with creating a mascot to compete with [[SuperMario the face of video games]] (who were later to be named SonicTeam), Sonic quickly became the gaming company's mascot, immediately replacing Sega's previous mascot, the Mario-[[CaptainErsatz derivative]] AlexKidd. The spunky, ever-lovin' cobalt-blue insectivore grew in strength and speed with each sequel to put its creators into a healthy competitive spot with Creator/{{Nintendo}} (and other, lesser gaming companies, most notably HudsonSoft and {{SNK}}) during the 16-bit UsefulNotes/ConsoleWars.

The games were positively brilliant. The sprites were incredibly well-drawn, the levels were huge and expansive with a few alternate paths, and they incorporated many design features like loops, corkscrews, and crumbling ledges that were never seen before in any game. Many entertainment companies were given the license to produce no less than four cartoon series, seven comic series, countless books, a sunday comic strip, and even an [[Anime/SonicTheHedgehogTheMovie anime movie]], all to capitalize on Sonic's success. For a while, the Sonic series even overshadowed Nintendo's poster boy, [[SuperMarioBros Mario]], due to the technical whizziness of its concept (helped by Sega dropping the meaningless term "[[{{Technobabble}} Blast Processing]]" into its ads) and the [[{{Badbutt}} proto-Badass]] nature of its main character. (This was the predecessor to the eventual [[RatedMForMoney family-friendly versus mature games]] debate, with a hedgehog with an attitude standing in for [[VideoGame/GrandTheftAuto killing beeyotches]].) And the concept was so simple: The aforementioned trio of Sonic (the hedgehog), Tails (the fox), and Knuckles (the echidna) try to thwart Dr. Ivo "Eggman" Robotnik's (the floating fat man) attempts at world domination using his army of robots and the Chaos Emeralds (the GreenRocks[[labelnote:*]]Incidentally, [[NonIndicativeName despite being called "Emeralds", they are seldom green.]][[/labelnote]]). Run fast, collect rings, bash robotic critters, and it's all good.

Sonic hit a bit of a DorkAge during the run of SEGA's Saturn console, which was a good deal less successful than its predecessor. The spinoff game, ''Sonic R'' was the only noteworthy Sonic game on the console, with a much better one, ''Sonic [[XtremeKoolLetterz X-Treme]]'', being announced but cancelled due to a permission dispute between developers, and filled in at the 11th hour by a upgraded port of the less-than-stellar ''VideoGame/Sonic3DFlickiesIsland''.

The series got revived in a truly 3-Dimensional incarnation on SEGA's next console, the Dreamcast. ''VideoGame/SonicAdventure'' and ''VideoGame/SonicAdventure2'' games were noted for their production values and ambitious plotlines, but also criticized for questionable gameplay choices and other teething problems such as a screwy camera and awkward controls usually found in [[PolygonCeiling platformers that tried to make their first jump to 3D]]. Sonic Team attempted to address these concerns with ''VideoGame/SonicHeroes'', which focused more on team-based gameplay and less on story. The physics, graphics, and gameplay of ''VideoGame/ShadowTheHedgehog'' drew some ire, but it mainly received criticism for its melodramatic story and dialogue.

A game simply titled ''[[RecycledTitle Sonic the Hedgehog]]'', but usually referred to as ''[[VideoGame/{{Sonic the Hedgehog 2006}} Sonic the Hedgehog 2006]]'' or simply ''Sonic '06'', was released in [[CaptainObvious 2006]] for the UsefulNotes/{{Xbox 360}} and 2007 for the UsefulNotes/PlayStation3. The game was yet another attempt by Sega to undo the PolygonCeiling that the series had been struggling with for some time. However, [[ChristmasRushed by forcing the game out for a Christmas release]], what we got instead was a ''very'' ObviousBeta that not only failed to address [[PolygonCeiling the flaws the franchise was hit with in the 3D realm]], but actually ''accentuated'' them. The camera, while not terrible, was a bit screwy, the [[WreakingHavok Havok physics engine]] was clearly implemented for the sake of having a physics engine, and extremely long [[LoadsAndLoadsOfLoading loading times]] that hadn't been seen in almost a decade.

As the ire towards the common problems of the 3D Sonic games reached their peak, Sega went for a simpler route with ''VideoGame/SonicUnleashed'', getting rid of much of the main cast and completely revamping the gameplay to a simpler style involving "boosting" much like Dimps' ''VideoGame/SonicRushSeries'', while pairing it with a completely different gameplay style for variety. The tone was also considerably lightened than the progressively DarkerAndEdgier games that made up the previous games. The game received a mixed reception for the latter style, but it was considered a step in the right direction for giving the series the exhilarating speed experience it needed and addressing much of the problems that previous Sonic games had. Sega listened to the reception and refined the boost-centric gameplay for the Nintendo platform exclusive ''VideoGame/SonicColors'' and the series-celebrating ''VideoGame/SonicGenerations'', further reducing the prominence of the large cast and lightening the tone to a more humorous Saturday Morning Cartoon tone. ''VideoGame/SonicLostWorld'' continued the latter trend, but introduced a completely new Mario-inspired gameplay style, which has lead many to ponder if Sega has gone too far with the LighterAndSofter trend just as they did with the DarkerAndEdgier trend before.

As mentioned, some titles in the series have been notable for suffering mixed to negative critical reception. In line with all the controversy, large varieties of theories exist to explain why the Sonic series is struggling in terms of reviews such as [[ExecutiveMeddling hastened]] [[ChristmasRushed development for deadlines]], a lack of talent or [[TheyJustDidntCare caring]] from the development team, over-reliance on [[UnexpectedGameplayChange new "gimmicky" gameplay styles or features,]] [[DarkerAndEdgier taking the series in too dark of a direction,]] [[NostalgiaFilter unrealistic demands from nostalgic fans]], or the inability to give the franchise a concrete identity. Nevertheless, the series still remains massively popular and is among the 10 best selling videogame franchises of all time. A feature-length LiveActionAdaptation [[Film/SonicTheHedgehog film]] based off the franchise is in the works after having been stuck in DevelopmentHell since the 1990s, and is set for release in 2018.

[[http://tvtropes.org/pmwiki/posts.php?discussion=12985657500A57372900 Here's where you can discuss all matters pertaining to this series.]]

! Games and other media featuring Sonic:

[[foldercontrol]]

[[index]]
[[folder:Main Series Games]]
* ''[[VideoGame/SonicTheHedgehog1 Sonic the Hedgehog]]'' (UsefulNotes/SegaGenesis, UsefulNotes/GameGear, 1991)
* ''VideoGame/SonicTheHedgehog2'' (UsefulNotes/SegaGenesis, Game Gear 1992)
* ''VideoGame/SonicTheHedgehogCD'' ([[UsefulNotes/OtherSegaSystems Sega CD]], PC, iOS, 1993)
* ''[[VideoGame/Sonic3AndKnuckles Sonic 3 & Knuckles]]''
[[/index]]
** ''Sonic the Hedgehog 3'' (UsefulNotes/SegaGenesis, 1994)
** ''Sonic & Knuckles'' (UsefulNotes/SegaGenesis, 1994)
[[index]]
** ''Knuckles the Echidna in Sonic the Hedgehog 2''
** ''VideoGame/BlueSphere''
* ''VideoGame/SonicAdventure'' (UsefulNotes/SegaDreamcast, 1998)
* ''VideoGame/SonicAdventure2'' (UsefulNotes/SegaDreamcast, 2001)
* ''VideoGame/SonicHeroes'' (UsefulNotes/{{Playstation2}}, UsefulNotes/NintendoGamecube, UsefulNotes/{{Xbox}}, PC, 2003)
* ''VideoGame/SonicTheHedgehog2006'' (UsefulNotes/{{Xbox360}}, UsefulNotes/{{Playstation3}}, [[ExactlyWhatItSaysOnTheTin 2006]])
* ''VideoGame/SonicUnleashed'' (also known as ''Sonic World Adventure'' in Japan) (UsefulNotes/{{Xbox360}}, UsefulNotes/{{Playstation3}}, UsefulNotes/NintendoWii, 2008)
* ''VideoGame/SonicTheHedgehog4'' (UsefulNotes/{{Xbox360}}, UsefulNotes/{{Playstation3}}, UsefulNotes/NintendoWii, iOS, Android, PC, 2010)
* ''VideoGame/SonicColors'' (UsefulNotes/NintendoWii, UsefulNotes/NintendoDS, 2010)
* ''VideoGame/SonicGenerations'' (UsefulNotes/{{Xbox360}}, UsefulNotes/{{Playstation3}}, PC, 2011)
* ''VideoGame/SonicLostWorld'' (UsefulNotes/WiiU, UsefulNotes/Nintendo3DS, PC, 2013)
* ''Untitled future Sonic project'' (TBD, 2017)
[[/folder]]

[[folder:Handheld Games]]
* ''[[VideoGame/SonicTheHedgehogChaos Sonic Chaos]]'' (also known as ''Sonic & Tails'' in Japan) (Game Gear, 1993)
* ''[[VideoGame/SonicTheHedgehogTripleTrouble Sonic the Hedgehog Triple Trouble]]'' (also known as ''Sonic & Tails 2'' in Japan) (Game Gear, 1994)
* ''VideoGame/SonicLabyrinth'' (Game Gear, 1995)
* ''VideoGame/SonicBlast'' (Game Gear, 1996)
* ''[[VideoGame/SonicPocketAdventure Sonic the Hedgehog Pocket Adventure]]'' (NeoGeoPocket, 1999)
* ''VideoGame/{{Sonic Advance|Trilogy}}''
[[/index]]
** ''Sonic Advance'' (UsefulNotes/GameboyAdvance, 2001)
** ''Sonic Advance 2'' (Game Boy Advance, 2002)
** ''Sonic Advance 3'' (Game Boy Advance, 2004)
[[index]]
* ''VideoGame/{{Sonic Rush|Series}}''
[[/index]]
** ''Sonic Rush'' (UsefulNotes/NintendoDS, 2005)
** ''Sonic Rush Adventure'' (Nintendo DS, 2007)
[[index]]
* ''VideoGame/SonicRivals'' (UsefulNotes/PlaystationPortable, 2006)
** ''Sonic Rivals 2'' ([=PlayStation=] Portable, 2007)
[[/folder]]

[[folder:Racing / Sports Games]]
* ''VideoGame/SonicDrift''
** ''Sonic Drift 2''
* ''VideoGame/SonicR''
* ''VideoGame/SonicRiders''
** ''Sonic Riders: Zero Gravity''
** ''Sonic Free Riders''
* ''VideoGame/MarioAndSonicAtTheOlympicGames''
** ''Mario & Sonic at the Olympic Winter Games''
** ''Mario & Sonic at the London 2012 Olympic Games''
** ''Mario & Sonic at the Sochi 2014 Olympic Winter Games''
** ''Mario & Sonic at the Rio 2016 Olympic Games''
* ''VideoGame/SegaSuperstars''
** ''Sega Superstars Tennis''
** ''Sonic & Sega All-Stars Racing''
** ''Sonic & All-Stars Racing: Transformed''
[[/folder]]

[[folder:Spinoff Platformers]]
* ''[[VideoGame/SegaSonicTheHedgehog SegaSonic the Hedgehog]]''
* ''[[VideoGame/KnucklesChaotix Knuckles' Chaotix]]''
* ''VideoGame/TailsAdventure''
* ''VideoGame/Sonic3DFlickiesIsland'' (also known as ''Sonic 3D Blast'')
* ''VideoGame/ShadowTheHedgehog''
* ''VideoGame/SonicStorybookSeries''
** ''Sonic and the Secret Rings''
** ''Sonic and the Black Knight''
* ''VideoGame/SonicBoom''
** ''Rise of Lyric'' (Wii U)
** ''Shattered Crystal'' (3DS)
** ''Fire & Ice'' (3DS)
[[/folder]]

[[folder:Other Spinoffs]]
* ''Sonic Eraser'': Japan only Sonic puzzle game, made for the Sega Meganet.
* ''[=SegaSonic=] Bros.'': An unreleased arcade puzzler by the creator of ''Bubble Bobble''. Stood under the radar for over 2 decades.
* ''[[VideoGame/SonicTheHedgehogSpinball Sonic Spinball]]''
* ''VideoGame/DoctorRobotniksMeanBeanMachine'': A DolledUpInstallment of VideoGame/PuyoPuyo made as a tie-in to the ''WesternAnimation/AdventuresOfSonicTheHedgehog'' cartoon.
* ''Sonic the Hedgehog's Gameworld'': A game for the ill-fated Sega Pico edutainment console.
* ''Wacky Worlds Creativity Studio'': Technically not a Sonic game, but Sonic appears as the games mouse cursor and he and Tails [[WolverinePublicity are prominently featured on the games box art.]]
* ''Tails and the Music Maker'': One of three games featuring Sonic's two-tailed friend as the star, and released for the Sega Pico.
* ''VideoGame/TailsSkyPatrol'' (Japan Only)
* ''VideoGame/SonicTheFighters'' (also known as ''Sonic Championship'')
* ''VideoGame/SonicJam'' (compilation)
* ''VideoGame/SonicsSchoolhouse''
* ''VideoGame/SonicShuffle''
* ''VideoGame/SonicPinballParty''
* ''VideoGame/SonicBattle''
* ''VideoGame/SonicChronicles: The Dark Brotherhood''
* ''VideoGame/SonicJump''
** ''Sonic Jump Fever''
* ''VideoGame/SonicDash''
** ''Sonic Dash 2: Sonic Boom''
* ''VideoGame/SonicRunners''
* ''VisualNovel/BigsBigFishingAdventure3TheTrial''
* ''VideoGame/SuperSmashBros'': Sonic has appeared as a major GuestFighter in both ''Brawl'' and the UsefulNotes/WiiU and 3DS Super Smash Bros. games.
* ''VideoGame/LegoDimensions'': Sonic is [[https://www.sonicstadium.org/2016/06/sonic-the-hedgehog-confirmed-for-lego-dimensions/ confirmed]] to appear as playable character in the game.
[[/folder]]

[[folder:Other Arcade Oddities]]
* ''Waku Waku Sonic Patrol Car'' - a kiddie ride in the form of a police car with a monitor embedded inside. Japan only. Also arguably Sega's earliest attempt to bring a Sonic game into arcades, predating ''[=SegaSonic The Hedgehog=]'' by a whole year.
* ''Segasonic Popcorn Shop''[[http://www.system16.com/hardware.php?id=705&page=1#2891]] - basically a popcorn vending machine with a game for kids to play while they wait for their popcorn to be ready.
* ''Segasonic Cosmo Fighter Galaxy Patrol'' (often shorted into ''Sonic Cosmo Fighter'')[[http://www.system16.com/hardware.php?id=847&page=1#2890]] - another kiddie ride with an embedded monitor, this time in the form of a jet. Again, Japan only.
* ''Sonic The Hedgehog kiddie ride'' - a kiddie ride in the form of Sonic's car in SonicAndSegaAllStarsRacing.
[[/folder]]

[[folder:TV and Video]]
* ''WesternAnimation/AdventuresOfSonicTheHedgehog''
** ''Sonic Christmas Blast''
* ''WesternAnimation/SonicSatAM''
* ''Anime/SonicTheHedgehogTheMovie''
* ''WesternAnimation/SonicUnderground''
* ''Anime/SonicX''
* ''WesternAnimation/SonicBoom''
[[/folder]]

[[folder:Film]]
* ''[[Film/SonicTheHedgehog Untitled Sonic the Hedgehog film project]]'' (2018; in production)
[[/folder]]

[[folder:Comic Books]]
* ''ComicBook/SonicTheHedgehogPromoComic'' (AKA ''Sonic The Hedgehog Number 1'')
* ''ComicBook/ArchieComicsSonicTheHedgehog''
** ''Sonic Universe''
** ''ComicBook/SonicTheHedgehogMegaManWorldsCollide''
** ''ComicBook/SonicTheHedgehogMegaManWorldsUnite''
* ''ComicBook/SonicTheComic'' (Fleetway)
** ''Webcomic/SonicTheComicOnline''
* ''ComicBook/SonicX''
* ''ComicBook/SonicAdventures''
* ''ComicBook/SonicBoom''
* ''Sonic the Hedgehog Story Comic'' (manga)
* ''Sonic the Hedgehog'' (various similar but unrelated manga, published in several different parts of Shogaku Ninensei from 1992 to 1994)
** ''Shogaku Ninensei'' (2nd Grade)
** ''Shogaku Ichinensei'' (1st Grade)
** ''Shogaku Sannensei'' (3rd Grade)
** ''Shogaku Gonensei'' (5th Grade)
** ''Shogaku Rokunensei'' (6th Grade)
** ''Coro Coro Comics Special''
* ''Dash & Spin; Super Fast Sonic!!'' (manga, published in CoroCoro Comic)
* ''The Adventures of Sonic the Hedgehog'' (manga, published in Shogakukan magazine. No relation to the [[WesternAnimation/AdventuresOfSonicTheHedgehog cartoon of the same name.]])
* Various Sonic manga from Dengeki Nintendo DS:
** ''Sonic Unleashed''
** ''Sonic and the Black Knight''
** ''Sonic Chronicles''
** ''Sonic Colors''
** ''Sonic Generations''
[[/folder]]

[[folder:Literature]]
* ''Literature/StaySonic''
* ''Literature/SonicTheHedgehogInRobotniksLaboratory''
* ''Literature/SonicTheHedgehogInTheFourthDimension''
* ''Literature/SonicTheHedgehogAndTheSiliconWarriors''
* ''Literature/SonicTheHedgehogInCastleRobotnik''
* ''Literature/TheSonicTheHedgehogJokeBook''
[[/folder]]
[[/index]]

Vote on the best game in the series [[http://tvtropes.org/pmwiki/crowner.php/BestEpisode/SonicTheHedgehog2?open=all#iztez0bf here]]!

----
!!Tropes throughout the games:
%% And that means throughout the entire series, maybe about three games or more, not just one or two games, please. Put character-related tropes on the character sheet.

[[folder:A-F]]
* OneUp: Either in form of a monitor or capsule with a character's head on it or a Sonic icon, depending on game.
* AbusivePrecursors: The ancient Echidnas. [[spoiler: One clan, Knuckles' ancestors, raided the shrine of the Master and Chaos Emeralds for power, trampling the innocent Chao and awakening the fury of their guardian god Chaos, who promptly went on a Roaring Rampage of Revenge that was stymied until the events of ''Sonic Adventure''. Another clan, rivals of the first, was even ''worse'', working to conquer the world with high technology and Killer Robots known as the Gizoids until someone sealed them in the Twilight Cage, where they remained until the events of ''Sonic Chronicles''.]]
** The ancient Babylonians from ''VideoGame/SonicRiders'' were a kingdom of SkyPirates.
* ABoyAndHisX: Maria and Shadow.
* AccessoryWearingCartoonAnimal: Most of the male characters wear nothing except shoes and gloves. Chip wears even less, only a necklace.
* ACupAngst: Stated in the script for Sonic the Hedgehog (2006), Blaze is embarrassed about her breast size.
* AdaptationPersonalityChange: A lot of adaptations do this. Perhaps most notably ''WesternAnimation/SonicSatam'' turns Dr. Ivo "Eggman" Robotnik from a [[LaughablyEvil clownish]] AntiVillain to a ([[TheComicallySerious mostly]]) [[KnightOfCerebus deathly serious]] overlord. Sonic's personality in different medias can range anywhere from an [[AllLovingHero incorruptibly kind]] and laid back [[TheAce Ace]] to a {{Jerkass}} KnightInSourArmor. Pretty much the whole cast that has been in more than one interpretation of the franchise has undergone this process to some extent.
* AddedAlliterativeAppeal: Some games, such as ''[[VideoGame/SegaSonicTheHedgehog SegaSonic]]'', ''[[VideoGame/SonicTheHedgehogCD CD]]'', ''[[VideoGame/KnucklesChaotix Chaotix]]'' and ''[[VideoGame/Sonic3DFlickiesIsland 3D Blast]]'' use alliterative names for all levels.
* AdvancedAncientAcropolis: [[VideoGame/Sonic3AndKnuckles Angel Island's]] inner workings are astonishingly intricate, from Hydrocity to Sandopolis to the Hidden Palace.
** [[VideoGame/SonicRiders Babylon Garden]] is an even more dramatic example.
* AirborneAircraftCarrier: Robotnik's favorite type of weapon, starting with Sky Base in the Sega GameGear ''VideoGame/SonicTheHedgehog1'' and continuing with the Egg Carrier and its variations in the modern games.
* AllNaturalGemPolish: Each of the Chaos Emeralds are cut to perfection. The seven emeralds were originally just eight-sided gems; they were later changed to diamonds to reflect the Master Emerald.
* AllThereInTheManual: Among Sonic's various, obscure, [[MultipleChoicePast contradicting origin stories]] is that he was born on [[UsefulNotes/{{Australia}} Christmas Island]], and that he gained his speed from an experiment with [[SdrawkcabAlias Dr. Kintobor]].
* AlwaysNight: The haunted house levels in some games, as well as some of the casino levels.
* AmazingTechnicolorWildlife: Be honest; have ''you'' ever seen a blue hedgehog in the wild? How about pink or silver?
* AmbiguouslyHuman: Dr. Robotnik / Eggman in the original non-Japanese continuities.
* AmericanKirbyIsHardcore: Old American artwork of Robotnik depicted him as constantly scowling (and with black eyes), as opposed to the oddly-always-smiling Eggman of the Japanese artwork. In ''WesternAnimation/AdventuresOfSonicTheHedgehog'', Robotnik had his 'evil' design, but was a bumbling boob prone to {{Angrish}}.
** Amusingly Inverted in the original design for Sonic made by Sega of Japan, which included fangs, an electric guitar, and a spiked collar. It turns out that this was actually an attempt to invoke this trope to attract American audiences. It was the American Sega team that trimmed him back to the Wild Ace we know and love.
** Attempted to be invoked again in ''VideoGame/ShadowTheHedgehog''. Interviews with Team Sonic reveal that the gun-toting dark turn of the game was supposed to attract American audiences specifically. It failed.
* AnotherSideAnotherStory: A lot of games have this from the start (For example, 2 sides in ''VideoGame/SonicAdventure2'', etc.), though they're usually accessible from the beginning. However, the ''VideoGame/SonicRiders'' subseries unlocks the alternate "Babylon" storyline after you're done with the Heroes and ''VideoGame/SonicAdventure'' allowed to start a character's story immediately after you encountered him in someone else's part of the game.
** Knuckles's story in ''[[VideoGame/Sonic3AndKnuckles Sonic 3 & Knuckles]]'' may also count, since several pieces of evidence within that story claim it to take place after Sonic and Tails's stories.
** This was also in effect in ''VideoGame/SonicTheHedgehog2006'' with '''three''' different characters' scenarios, but in the end it practically meant the developers only had about a dozen levels and were forced to re-use them all twice to make the game long enough. And that's not counting the fact that the final level is a bunch of {{Remixed Level}}s.
* ArcHero: ''Creator/SonicTeam'' has done this throughout the ''Franchise/SonicTheHedgehog'' franchise, to the point you could almost subtitle them based on the Arc Hero. Of course, it eventually became a never ending DebutQueue and lead to some backlash due to LoadsAndLoadsOfCharacters.
** ''VideoGame/SonicTheHedgehog2'' Sonic and Tails, plot wise a new sidekick, gameplay introducing two player mode.
** ''VideoGame/SonicTheHedgehog3'' Sonic and Knuckles, plotwise a new rival, gameplay introducing characters with different abilities.
** ''VideoGame/SonicAdventure2'' Sonic and Shadow, plot-wise another new rival who was directly related to Space Colony Ark and Gerald Robotnik's experiments. Also introducing the idea of seeing the plot from different perspectives with Hero Mode and Dark Mode.
** ''VideoGame/SonicHeroes'' Sonic and Tails and Knuckles. Plotwise the PowerOfFriendship on full display and gameplay wise the StanceSystem of changing the leader on the fly.
** ''VideoGame/SonicRush'' Sonic and Blaze, who had a direct relationship with new ArcVillain Eggman Nega.
** ''VideoGame/SonicTheHedgehog2006'' Sonic and Silver, who came to stop Sonic from becoming the Iblis Trigger and creating his BadFuture.
** ''VideoGame/SonicUnleashed'' Sonic and Chip, a new sidekick also directly related to the new ArcVillain. Gameplay was more about the contrast between default Sonic and his new werewolf-like form.
** ''VideoGame/SonicColors'' Sonic and Yacker, or the Wisps generally, a new powerup system.
** ''VideoGame/SonicGenerations'' Sonic and Sonic bringing it full circle for the anniversary, combining new gameplay with classic gameplay.
* ArcWords[=/=]RunningGag: At least one character has said "Long time no see" in almost every game since ''Sonic Adventure''. However, since ''VideoGame/SonicUnleashed'', they seem to have stopped doing this.
** In ''VideoGame/SonicAdventure'', Tails says this to Sonic in Sonic's story, and Amy says it to Sonic.
** In ''VideoGame/SonicAdventure2'', Knuckles says it when first meeting up with Amy and Tails, Rouge says this to Knuckles just before their boss-battle against each-other.
** In ''VideoGame/SonicHeroes'', Sonic says that to Tails and Knuckles in the opening cutscene for Team Sonic's story. And Rouge says this to Team Sonic before the Team Sonic vs. Team Dark battle.
*** [[spoiler: Metal Sonic]] also says this to Sonic at the start of the final boss battle; one of the few cases where it ''has'' been a long time.
** In ''VideoGame/ShadowTheHedgehog'', Sonic ([[RunningGag see a pattern here?]]) says this to Shadow when you run into Sonic at the beginning of the very first stage.
** In ''[[VideoGame/SonicRushSeries Sonic Rush]]'', Blaze says this to Eggman Nega when she first meets him in Sonic's side of the story.
** In ''VideoGame/SonicTheHedgehog2006'', Sonic and Rouge both say this at multiple points each in the game.
** In ''[[VideoGame/SonicRushSeries Sonic Rush Adventure]]'', [[spoiler:Eggman]] says this the first time he encounters Sonic in the game.
** ''[[VideoGame/SonicRiders Sonic Riders: Zero Gravity]]''. Wave greets Tails with, "Long time no see, shorty!"
** In the 3DS "[[VideoGame/MarioAndSonicAtTheOlympicGames Mario & Sonic at the London 2012 Olympic Games]]" Tails says it towards the [[ItMakesSenseInContext fog impersonating Mario & Luigi]]. Too be fair, they probably haven't seen each other after the winter olympics.
* ArtEvolution: See the page image? [[http://upload.wikimedia.org/wikipedia/en/d/df/Sonic_1991.png Sonic, as depicted on the left, is what he used to look like.]] In ''VideoGame/SonicAdventure'', he was remade to be taller, have green eyes, and have longer limbs and quills. It was modified further in that direction in ''VideoGame/SonicTheHedgehog2006''. ''VideoGame/SonicUnleashed'' onwards, his looks are now a hybrid of the "Classic-Era" and "Adventure-Era" designs. This is {{Lampshaded}} in ''VideoGame/SonicGenerations'', where the current-style Sonic teams up with his very different-looking Genesis-era self. [[http://info.sonicretro.org/images/8/85/Sos09_artbook_p09.jpg Over the years we have this.]]
* TheArtifact: The franchise has had some trouble finding ways to keep all of its facets relevant.
** Knuckles was Sonic's first example of TheRival, but has since been displaced by Shadow, who was first introduced as Sonic's CriminalDoppelganger.
** The Master Emerald has also been less and less utilized, often merely as an excuse to include Knuckles, even though by rights it should be one of the most important artifacts in the franchise, since it can both [[VideoGame/Sonic3AndKnuckles enhance]] and [[VideoGame/SonicAdventure suppress]] the powers of the Chaos Emeralds.
** The Babylon Rogues from the VideoGame/SonicRiders series have also become this, even within their own spinoff. Part of their story involves their connection with the FloatingContinent called Babylon Garden, but since Babylon Garden's story appears to have been concluded, they've been reduced to token opposition in Extreme Gear competitions.
* ArtisticAge
* ArtisticLicenseBiology: Several character designs are disturbingly quirky from a physiological standpoint:
** The way Sonic's face is designed makes it look like his two eyes are ''connected to each other'' which, by definition, makes him a ''double-irised one-eyed hedgehog''. Also, his lack of hips and general lack of anatomy would have made it impossible to exert any speed or strength, much less the kind he achieves.
** Even if we look past the improbability of two soft tails having the strength and friction to even make Tails hover, much less airborne, they couldn't possibly spin in a helicopter like pattern without getting quickly twisted and tangled up. At least one fan comic lampshades this by Sonic asking Tails how he rotates his tails like that. The comic reveals Tails does it by rotating his bum cheeks, [[VoodooShark much to Sonic's further confusion]].
* AscendedExtra: Amy, who started as a DamselInDistress in ''[[VideoGame/SonicTheHedgehogCD Sonic CD]]'', appeared among the cast of later spin-offs, and returned for ''VideoGame/SonicAdventure'' [[CharacterDevelopment completely overhauled]] and finally seeing a piece of the action.
* AscendedFanboy: Tails. He follows Sonic one day and becomes interested in him. He eventually wants to become like him though [[JerkAss Sonic ignores him]]. After Sonic and Tails had gone on an adventure to defeat Eggman, they become friends and he lets him tag along with him, [[HeterosexualLifePartners eventually developing a bond]]. Also, Amy in the Archie Comics.
* AshFace: Dr. Robotnik is prone to have it in some of the 2D games after his creations are defeated.
* AstralFinale: Frequently.
* BagOfSpilling: Sonic and co. are forced to constantly recollect the Chaos Emeralds in each game. With the sole exception of ''Sonic 3'' and ''Sonic Unleashed'' (where Sonic starts off with the Emeralds and loses them as a plot point), the games offer no explanation as to why they keep losing the Chaos Emeralds.
* BashBrothers: Sonic and Tails, in many incarnations. Can also apply to any character alongside Sonic, including his [[VideoGame/SonicGenerations younger self]].
* BatmanCanBreatheInSpace: Apparently, Sonic and his friends are able to breathe in space (as seen in several games and ''Anime/SonicX''), including Dr. Eggman, the one human main character, in ''[[VideoGame/Sonic3AndKnuckles Sonic 3 & Knuckles]]'', ''VideoGame/SonicAdventure2'', ''VideoGame/SonicPocketAdventure'', and ''[[VideoGame/SonicAdvanceTrilogy Sonic Advance 3]]''.
* BelligerentSexualTension: Knuckles and Rouge have displayed this at times.
* BenevolentArchitecture
* BerserkButton: The following is what you should do if Sonic catches you harming Tails in any way, shape and/or form: stop what your doing, turn around, and run. Not that it'll matter, but just a suggestion.
** Knuckles will flip a shit if you steal/are trying to steal/he believes you are going to steal the Master Emerald.
** Never suggest Amy that Sonic really does not love her. Especially if you are Sonic.
* BlackAndWhiteMorality: While the series sometimes dips into greyer areas, the general tone of the franchise has largely been basic Good Vs. Evil conflicts. Even the more morally ambiguous characters are just jerks at the worst.
* BlindIdiotTranslation: Before the developers had settled on a name for Sonic, he was referred to as "Mr. Needlemouse". The Japanese word for "hedgehog" is "harinezumi". Guess what a literal translation of that would yield.
* BonusStageCollectables: The Chaos Emeralds were the former {{Trope Namer}}s, and examples in the first two games. The third game introduced unlimited attempts at the emeralds, moving them away from this trope, and since then most games have had them collected automatically during cutscenes, making them normal [[MacGuffin MacGuffins]].
* BossOnlyLevel: A trademark of the series; first there was [[VideoGame/SonicTheHedgehog1 Final Zone]], and then it ''really'' took off after [[VideoGame/Sonic3AndKnuckles The Doomsday Zone]], with the final boss of every game gaining its own level, [[EleventhHourSuperpower usually played in]] SuperMode.
** In fact, ''[[ExaggeratedTrope every]]'' boss gained its own level around that time.
* BottomlessPit: Relatively rare in the early ''Sonic'' games, but increasingly common as the series has gone on. Taken UpToEleven in ''Heroes'', where every zone after Power Plant is basically a giant pit with platforms and grind rails suspended over it.
* BreakOutMookCharacter: The Moto Bug, playable in [[https://www.youtube.com/watch?v=HGlC-YVFvQY this]] GameMod.
* BTeamSequel: The [[VaporWare aborted]] UsefulNotes/SegaSaturn game Sonic X-Treme, which was intended as the Sonic series major leap into the third dimension, was developed by the western based Sega Technical Institute and was made with no involvement by Creator/SonicTeam at all, who were burned out on the series after making the first four Genesis games, and were wrapped up working on the games VideoGame/{{Ristar}}, VideoGame/NiGHTsIntoDreams and VideoGame/BurningRangers anyway. After X-Treme went through a [[TroubledProduction disastrous production]] that ended with both its cancellation and [[CreatorKiller the dissolution of the Sega Technical Institute]], Sega used NiGHTs and an [[PolishedPort upgraded port]] of the Travellers Tales spinoff game VideoGame/Sonic3DBlast to fill in as the KillerApp for the Saturn while Sonic Team were forced to take the reigns back on the series, beginning work on a prototype 3D engine (later used for the Sonic World hub of VideoGame/SonicJam) that would end up becoming the basis for Sonic's real 3D debut, VideoGame/SonicAdventure.
* CallingYourAttacks: "Chaos Control!" "Sonic Wind!" "Black Wave!"
** [[VideoGame/SonicColors "Laser!" "Drill!" "Frrrrrrenzy!"]]
* CanonDiscontinuity:
** The ComicBook/SonicTheHedgehogPromoComic was originally the canon western backstory for Sonic and Robotnik, [[AllThereInTheManual according to the original]] [[http://sonic.wikia.com/wiki/Sonic_Bible US Sonic Bible]]. Once VideoGame/SonicAdventure retconned the western branch of the series to follow the same continuity of the Japanese storyline, this old backstory was knocked out of canon forever (although given the games never acknowledged this old backstory in the first place, its unclear if it was [[ContinuityDrift ever truly established as western canon in the first place]]).
** [[VideoGame/SonicTheHedgehog2006 Sonic 2006]] put this on ''itself'', due to [[spoiler:a CosmicRetcon ResetButtonEnding.]]
** Kevin Eva, who was the community manager of Sega Europe in the mid-2000s, [[https://board.sonicstadium.org/topic/19847-segas-secret-sonic-bible-that-well-probably-never-see-to-mars/?page=10#comment-964735 stated]] that VideoGame/SonicChronicles is non-canon to the main games. The Ken Penders lawsuit with Archie and Sega, which involved using substitutes of his own characters from the comics, makes it very unlikely that elements from the spinoff will ever pop up again.
** Eva also added that Sega and Sonic Team like to play fast and loose with whats considered canon or not in the series, and that whats considered canon or not can and has frequently changed over time.
-->"One of the things I also went on to say in that thread was that the canon was and is somewhat in flux all the time. As since it is, for want of better phrasing, whatever SEGA want or need it to be at the time. So it could easily change."
%%(sammmax:) CanonDiscontinuity example changed because of a lack of citation for where he found the information. Heck, I tried finding it without much luck. Please cite where you found that information if you ever decide to put it back up. Sonic 2006 was put up because it was the only one with evidence supporting it.
* CanonImmigrant:
** The Swatbots of [[WesternAnimation/SonicSatAM SatAM]] fame have been introduced into Chronicles, although with a notable armor overhaul.
** Amy and Charmy first appeared in the Sonic manga produced by Shogakukan in 1992, albeit looking rather different. Amy was lifted from there and redesigned for Sonic CD. A 1993 manga redesigned to fit more with the Sonic look, with the same characters, was released...and Charmy was subsequently lifted and used two years later in ''[[VideoGame/KnucklesChaotix Knuckles' Chaotix]]''. Arguably one of the most successful stories of a canon immigrant, as shown above with the 'Ascended Extra' point.
** Sonic's love for chili dogs in the ''WesternAnimation/AdventuresOfSonicTheHedgehog'' has been more tightly integrated into the official canon in the past few years; there's a chili dog salesman in ''Unleashed'', Sonic is summoned with two in-hand in the opening of ''Black Knight'', and he's given one as his ''birthday present'' from Tails in ''Generations''.
* CartoonyTail: Tails has [[CaptainObvious two tails]] that enable him to fly like a helicopter when he spins them. There's no indication of how this is anatomically possible.
* CasinoPark: The TropeNamer, from ''VideoGame/SonicHeroes'', but most games feature a casino level anyway.
* CerebusRollercoaster: While the early games were lighthearted, cartoony games, the series started shifting into a [[CerebusSyndrome more serious, shonen-anime like tone]] with the VideoGame/SonicAdventure duology. ''VideoGame/SonicHeroes'' briefly went back to a more cartoony tone ([[MoodWhiplash sans the Last Story]]), only for the series to reach the epitome of its CerebusSyndrome with ''VideoGame/ShadowTheHedgehog'' and ''VideoGame/SonicTheHedgehog2006''. Due to complaints about this, Sega has been [[ReverseCerebusSyndrome consciously going back to the series more lighthearted, cartoony roots,]] with hints of it in ''VideoGame/SonicUnleashed'' (despite still taking itself seriously), and officially starting with ''VideoGame/SonicColors''. With that being said, ''VideoGame/SonicGenerations'' may have some darker, serious moments at points--although it still has much of the series lightheartedness still on board to balance it out. After all, it ''is'' a milestone game for the whole series. As of SonicLostWorld, Sega seems to be taking the series back in a more serious direction, as the game has some dark moments and the tone is closer to the ''Sonic Adventure'' games.
* ChainReactionDestruction: What bosses in 2D Sonic games do when they run out of hitpoints.
* ChaosArchitecture: Good luck trying to find a consistent model or design for recurring locations in the Sonic series. Take Angel Island, for example, the recurring FlyingContinent and home of the Master Emerald; it's gone through several different designs over the series, and most notably it was significantly shrunk down in size in the Adventure series.
* CheekyMouth: Most Sonic characters exhibit this occasionally. Not as a cost-cutting animation measure, mind you, but actually as a signature style that has stayed with Sonic since his first appearance. The trope is even ubiquitous enough to occur on 3D models, such as the trope picture above. Needless to say, [[CheatedAngle whichever cheek is most visible to the viewer will usually be where the mouth is]].
* ColorCodedStones: Both played straight and averted. The Master Emerald which stands alone, is green. The Chaos Emeralds are a set of seven, only one is green and the others are differentiated by color. Given the RealLife example below they should probably be called Chaos Beryl instead.
** The first level and GreenHillZone of the original ''Sonic the Hedgehog'' is the TropeNamer, Green Hill Zone. The first level and GreenHillZone of the sequel is Emerald Hill Zone.
** In ''VideoGame/SonicAdventure'' and ''VideoGame/SonicAdventure2'' the Chao race courses were all named after gemstones and the prize for winning is a medal following that color scheme.
* CombatParkour: Sonic takes full advantage of his speed and agility to flip and bound around badniks and Eggman's mechanical creations, expertly weaving between and around attacks before either striking them directly or kicking their missiles back at them. The parkour-like aspects of his fighting style are more apparent in cutscenes and in the animated adaptions.
* ComebackMechanic: The games that support multiplayer races will usually have a feature that swaps two players' locations in the stage. Sometimes, it's a hidden item, and sometimes, it's a character's ability. Naturally, this is only useful to a player who's fallen behind.
* CompilationRerelease: Practically all of the original games from the Genesis and Master System up to the Dreamcast were re-released on later (non-Sega) consoles in some form or another.
* ConjoinedEyes: Most of the hedgehogs.
* ContinuingIsPainful: [[VideoGame/SonicColors Almost]] every ''Sonic'' game since ''Adventure'' resets your score to zero every time you die, almost assuring a bad rank if you're far enough into a stage.
** ''VideoGame/SonicColors'' doesn't reset your score but unfortunately, it doesn't reset the time back to 0:00 either. It continues from what it was when you died. So it's still painful.
* ContinuityCreep: Continuity was increased heavily around ''VideoGame/SonicAdventure'', with several plot points often hinging on those of previous games. However, this was inverted from ''VideoGame/SonicTheHedgehog2006'' onward, since the games from that point on have been much ''less'' connected to one another aside from offhand nods.
* ContinuityNod: As of ''VideoGame/SonicAdventure'', the ''Sonic'' series now makes frequent nods to previous games. ''VideoGame/SonicChronicles'' in particular is full-on ContinuityPorn.
* CoolAirship: The Egg Carrier from ''Sonic Adventure'', as well as Eggman's Eggmobile hovership that he uses at every possible opportunity. (Bonus points for Eggman's Eggmobile being an installable cockpit for many of his only mecha).
* CoolPlane: The Tornado and the Egg Carrier.
* CosmicHorrorReveal: It has repeatedly happened that Eggman suddenly finds himself out of his league when his schemes provoke godlike horrors, such as [[VideoGame/SonicAdventure Perfect Chaos]], [[VideoGame/SonicUnleashed Dark Gaia]], and [[VideoGame/SonicTheHedgehog2006 Solaris]], and Sonic has to go Super to bail Earth--and Eggman--out of the mess the doctor had caused.
* CreditsMedley: One of the oldest examples of this trope in videogames. The 16-bit games traditionally replay the whole soundtrack over the credits.
* CrosshairAware
* {{Crossover}}: Thanks to the ''Olympic Games'' series, Sonic has one with the {{Mario}} franchise, its historic rival.
** Sonic characters also crossover with other Sega characters in the ''Tennis'' and ''All-Stars Racing'' installments of the ''SegaSuperstars'' series.
* CulturalTranslation: Subtle but still there. Some of the classic designs were changed a bit outside of Japan, in the official art. For example, Sonic was given a [[http://img341.imageshack.us/img341/7990/designsonicvz2.png mohawk]], his eyebrows became more expressive (which was carried onto Adventure everywhere), and he became slightly more built while Tails became [[http://img202.imageshack.us/img202/1379/designtailsqc2.png more stereotypically cute]] (chubbier, rounder, shorter snout, shorter fur, belly fur combed flat, etc).
** [[http://info.sonicretro.org/File:Eggman01_32.png Doctor Eggman]] got [[AmericanKirbyIsHardcore a more menacing design]] when he was adapted into his American counterpart, [[http://info.sonicretro.org/File:Toon_eggman2.png Doctor Robotnik]].
* CutLexLuthorACheck: Eggman shows an incredible talent in weaponry, vehicle, and robot design, and an ability to mass produce many of these designs. Of course, even if he doesn't want to sell his inventions, he also shows a fondness for casino and theme park designs, [[BreadAndCircuses and could probably gain a lot of money and influence just by entertaining people]].
** In ''VideoGame/SonicColors'', even our heroic duo admit that they'd happily pay to [[GoKartingWithBowser enjoy Eggman's new theme park]] for a while. If it wasn't such a painfully [[SchmuckBait obvious trap]], of course.
** He actually does cash in on his inventions in ''VideoGame/SonicBattle'' and ''VideoGame/SonicRiders''. In the first he sells generic versions of his E-100 Series models as security droids and in the latter he runs Robotnik Inc. which provides a good handful of the Extreme Gear of the first game including, hilariously enough, the personalized gears of roughly half the cast. He also runs the security service Meteor Tech which, while having an ulterior motive in the end, did seem to legitimately provide security services for Future City and the rest of the continent it resides on..
* DarkerAndEdgier: Shadow the Hedgehog and his [[VideoGame/ShadowTheHedgehog self-titled game]], ''VideoGame/SonicTheHedgehog2006'', and ''VideoGame/SonicAdventure2'', even, what with its themes of revenge, government conspiracies, military weapons projects, and apocalyptic scenarios.
** ''VideoGame/SonicAdventure'' turns darker and edgier towards the end.
** Preceded by ''[[VideoGame/SonicTheHedgehogCD Sonic CD]]'', which possessed numerous {{Bad Future}}s, and had a much more downbeat tone than any of the Genesis titles.
** [[WesternAnimation/SonicSatAM SatAM]] was darker than the games to the point of being an InNameOnly adaptation.
** The second [[Anime/SonicX Sonic X]] series (third season outside of Japan) was darker than the first one. And before that, the Sonic Adventure 2 adaptation was darker than rest of the show.
* DefeatEqualsExplosion: Almost every enemy that is defeated throughout the series explodes, from Badniks that explode in a puff of smoke as the animal inside is freed to Eggman's various boss machines that fall apart as explosions engulf them.
* DefeatMeansFriendship: The gang's usual method for making new friends. Happened with Knuckles, The Chaotix, Gamma, Shadow, Rouge, Silver and Blaze.
* DeathByOriginStory: Maria and Gerald Robotnik for Shadow.
* DeathCourse: Even in the middle of nowhere, out in the ocean or in the middle of a forest, Sonic and the gang will inevitably cross paths with crates, spikes, drills, and other nasty hazards.
* DemotedToExtra:
** Every character in ''Franchise/SonicTheHedgehog'' who isn't Sonic, Tails, or Eggman had this happen to them to varying degrees. Between ''VideoGame/SonicTheHedgehog2006'' and ''VideoGame/SonicBoom'' in 2014, the only playable appearance by a character other than Sonic were Tails and Metal Sonic in ''VideoGame/SonicTheHedgehog4 Episode 2'', as well as Tails piloting vehicles in bonus stages of ''VideoGame/SonicRushAdventure'' and ''VideoGame/SonicLostWorld''. Some other characters were playable in the spin-off game ''SonicRivals 2'' (2007).
** Knuckles and Shadow were not in ''VideoGame/SonicUnleashed'', and the two and Amy didn't appear in the Wii version of ''VideoGame/SonicColors''. The setting of the latter game logically prevented appearances from other characters, but the DS version inserted random cameos of most of the cast. This continued the trend of other supporting characters solely making cameos in most in other games.
** The Chaos Emeralds also go from being a central plot point of the series to an optional extra sidequest in both versions of ''VideoGame/SonicColors'', although this is averted for Chaos Emeralds on the DS port. Gathering all of them allows you to access the TrueFinalBoss and also to witness the GoldenEnding.
** Tails does get substantial time as a supporting character even in the games he is not playable in, but considering in-story he is Sonic's partner in heroism, his gameplay role still seems limited. For example in the standalone ''[[VideoGame/Sonic3AndKnuckles Sonic & Knuckles]]'', he only appears in the closing cutscene if the game is played as Sonic.
** Chaos has no real role in ''VideoGame/SonicBattle'''s plot; his appearance is just for the sake of having Emerl copy skills from him.
** Flickies for ''VideoGame/SonicTheHedgehogCD'' where they can be seen on Little Planet yet are not relevant to the badniks like in the other classic games (instead, flowers pop out of them).
** The wisps in general in ''VideoGame/SonicLostWorld'', since there is no explanation for their presence. One kind of them, the White Wisps, just get cameos since Sonic does not need them to boost.
** Classic Sonic rarely appears in newer games because as far as Sega is concerned, he and Modern Sonic are one and the same. They have a mandate that the former can't appear alongside Modern Sonic in either newer games or in merchandise unless a time travel explanation is involved (which was the case in ''VideoGame/SonicGenerations'').
* DerivativeDifferentiation: The ''Sonic'' series was obviously influenced by ''SuperMarioBros'', but in contrast to Mario's strategic, defensive platforming, Sonic's gameplay usually leans more towards casual, heavily streamlined platforming romps with rollercoaster/pinball like physics and design with emphasis put on maintaining speed and precision timing more than anything else, with occasional standard, slower platforming, combat, puzzles and minigames sandwiched in.
* DetectiveAnimal: Team Chaotix, which was reintroduced in ''VideoGame/SonicHeroes'' as the Chaotix Detective Agency.
* DetonationMoon: In ''VideoGame/SonicAdventure2''.
* DeusExMachina: The Chaos Emeralds have frequently served as an EleventhHourSuperpower source for the heroes ever since the first VideoGame/SonicAdventure.
* DirectionallySolidPlatforms: Common in the 2D games.
* DisneySchoolOfActingAndMime: The earlier games avoid this, but the games from Sonic Adventure 2 and onward starting relying on broad acting gestures like these.
* DroughtLevelOfDoom: The 8- and 16-bit games are well-known for their final stages being {{Boss Only Level}}s with no Rings, forcing you to defeat the {{Final Boss}}es without getting hit.
* DuelBoss: Shadow, General Raxis and [[spoiler:Pir'Oth Ix's Super State]] in ''SonicChronicles''.
** Also Sonic/Blaze in ''[[VideoGame/SonicRushSeries Rush]]'', Tails/Eggman, Rouge/Knuckles and the aformetioned Sonic/Shadow in ''VideoGame/SonicAdventure2'', Sonic and Shadow vs. Silver in ''[[VideoGame/SonicTheHedgehog2006 Sonic '06]]'', and Knuckles in ''VideoGame/SonicAdventure'' but more importantly Hidden Palace Zone from ''[[VideoGame/Sonic3AndKnuckles Sonic 3 & Knuckles]]''.
* DummiedOut: Can be considered a TropeCodifier. ''Every'' game in the series has something major in it missing, and sometimes new games are born from those scrapped elements.
* EagleLand: Arguably, this is the idea behind Sonic's character design. He is a mishmash of different western {{Funny Animal}}s (in fact, in one of his earliest character concepts, he was a [[WesternAnimation/BugsBunny grey rabbit with a bowtie]], and his body and head shape were reminiscent of FelixTheCat), he is the same color as the American flag (but recent information points that his trainers were made red and white to match ''SantaClaus'' colour scheme), and his 90s snarky, aloof attitude and penchant for XTREME hobbies were distinctly non-Japanese. (He also speaks in Engrish in the Japanese version.) He also has a tendency to [[WalkingTheEarth roam the lands]] randomly helping people, not unlike wild western heroes like {{Shane}}. All of this was intentional on Sega's part, since the Japanese branch knew that the Genesis (and to a lesser extent, the Master System) sold more in America than in their own country, and with Nintendo's Super Famicom looming on the horizon, they knew they would need some kind of hook to keep from being trounced internationally.
* EarlyInstallmentWeirdness:
** The original ''Sonic'' games were much more cartoony than the later entries, and the original game only had six emeralds, no Super Sonic, and no spin-dash as well as the "Spike Bug". Even if you had mercy invincibility, landing on spikes would kill Sonic.
** Gameplay mechanics and art style differences aside, the original US branch of Sonic had a distinctive backstory from the Japanese continuity of the games, as presented in the ComicBook/SonicTheHedgehogPromoComic, which [[AllThereInTheManual the original]] [[http://info.sonicretro.org/Sonic_the_Hedgehog_Bible Sonic Bible]] ''did'' consider to be the series canon backstory by Sega of America of the time. This included differences like there being seven Chaos Emeralds from the beginning, Sonic initially being brown and having regular quills until he ran so fast one day that the heat fused his quills together and changed his color to cobalt blue, Dr. Robotnik starting off as a good man named Ovi Kintobor (who was even a friend to Sonic and built him specialized shoes to protect himself from the heat of the high friction speed he could achieve), until he unwittingly turned himself into the evil Ivo Robotnik via a malfunctioning invention of his. This was either ignored or forgotten over time, but it was eventually nullified once Sega of Japan decided that the US branch of Sonic should share the same canon as the Japanese games, starting with VideoGame/SonicAdventure and on.
* ElementalPowers - Not crucial to the characters, but they show up from time to time:
** Sonic - BlowYouAway
** Tails - ShockAndAwe
** Knuckles - PlayingWithFire / DishingOutDirt
** Amy - HeartBeatDown
** Shadow - TimeMaster / PureEnergy
** Blaze - PlayingWithFire
** Silver - PsychicPowers
** Rouge - ShockAndAwe / CastingAShadow
* EleventhHourSuperpower: The Super/Hyper/Darkspine/Whatever versions of the core Sonic Trio (and Shadow/Silver/Blaze).
* TheEmpire: The Eggman Empire.
* EnemyMine: ''Sonic Adventure 2's'' memorable Cannon's Core level.
** Sonic and Eggman have teamed up on multiple occasions when they've had a common enemy: ''VideoGame/SonicAdventure2'' against The Biolizard, ''VideoGame/SonicAdvance3'' against Gemerl. Generally it's because Eggman wants to take over the world, not destroy it, and he can't take over the world if there's no world to take over, so generally if someone (or something) wants to destroy the world Eggman will usually fight against them, either with Sonic or without. The fat scientist makes this point almost verbatim in ''VideoGame/ShadowTheHedgehog'' as he watches the Black Arms wreck up Westopolis.
** Shadow has teamed up with characters he's considered enemies several times, most often in his own game. The final cutscene features Knuckles and Eggman actually having a fun moment together
* EveryTenThousandPoints: Generally, every 100 rings in a level and 50,000 points overall will give the player an extra life, though that has varied.
* EverythingsBetterWithSparkles: Most notable ones will cause temporary invincibility in several games.
* EvilLaugh: Robotnik's weird "[[NoblewomansLaugh Ohohohohoho!]]" along with Shadow's maniacal laughter in [[VideoGame/ShadowTheHedgehog his own game]] as well as Mephiles in Sonic 06.
* ExcusePlot: Most of the games in the series (mainly the pre-Sonic Adventure games and the more recent entries from ''Sonic Colors'' and onward) rely in paper-thin stories that amount to "Save the world from the bad guy and his evil robots!"
* ExpositionFairy: Started out as the FloatingAdviceReminder, then turned to the actual characters themselves noting your abilities, usually the NPC secondary characters.
* {{Expy}}: Rouge the Bat is basically an animal take on Morrigan from VideoGame/{{Darkstalkers}}.
** The Nocturnus are very similar to the group of Echidnas, the Dark Legion, from the Archie Comics, and Shade is similar to Julie-Su, and their home dimension "The Twilight Cage" has a similar name to the Dark Legion's dimension "The Twilight Zone". Ix also looks similar to the ComicBook/SonicTheComic character Dr. Zachary, and Archie's version Dr. Finitevus.
** The Ifrit in ''Sonic Rivals 2'' is very clearly an expy of [[VideoGame/SonicTheHedgehog2006 Iblis]]. Like Iblis, the Ifrit is an immortal fire monster named after a djinn in Middle Eastern mythology, and who is responsible for destroying the world in Silver's future. Even their designs are similar, with the Ifrit resembling a winged version of one of Iblis' forms.
* {{Faceship}}: Dr. Eggman builds a lot of these with his face on them, most notably the Death Egg.
* FamilyThemeNaming: There's a small family all named after dairy products: Cream the Rabbit; her mother, Vanilla, and her Chao, Cheese. Other Chao associated with Cream were named Chocola and Milk.
* FantasyKitchenSink: The series features numerous different elements of fantasy mashed together, from ancient long forgotten civilizations with powerful demigods, aliens that can range from evil to friendly, superhero and shonen anime elements, light science fiction hallmarks, ghosts, monsters, magical artifacts, mutants, storybook characters, "Ghost in the Shell" type stories (i.e. the story arc of Gamma in ''VideoGame/SonicAdventure'') and so on.
* {{Fanservice}}: Rouge the Bat.
* FastballSpecial: Sonic seems to make a natural projectile. Very common in ''Sonic Chronicles'' and ''Sonic Heroes''.
* {{Fireballs}}: From the Marble Zone of the first game to the latest Sonic games.
** Knuckles can also shoot these in VideoGame/SonicHeroes.
* FlashOfPain: Bosses in the 2D Sonic games tend to do that.
* FloatingAdviceReminder: Started in the ''Sonic Adventure'' games with Tikal and Omochao, then exploded from there.
* FlyAtTheCameraEnding: The ending sequences to many 2D ''SonicTheHedgehog'' games feature Sonic (or Tails, Knuckles, Amy, Cream, etc.) jumping towards the player and posing while suspended in air. ''Sonic the Hedgehog 2''s ending is the most notable: both Tails's plane and (Super) Sonic fly away from the player only to come back head first.
* FollowTheLeader: Sonic's popularity in the early 90's spawned many knockoff MascotWithAttitude characters, including VideoGame/{{Bubsy}}, VideoGame/AwesomePossum, [[VideoGame/RocketKnightAdventures Sparkster the Opossum]], VideoGame/{{Zool}}, and VideoGame/AeroTheAcrobat.
** Sonic himself, despite being made as a direct competitor to Mario, was unmistakably inspired by it. Although the series did maintain its own feel instead of being a mere copycat, recent games such as SonicLostWorld clearly show an attempt to emulate elements of the Mario series, SuperMarioGalaxy in particular, while mixing it with the series standard gameplay elements.
* FollowTheMoney: Often, rings lead you somewhere. In the 3D games, it's often even possible to perform light dash which makes Sonic follow the path made out of rings.
** The rings have been put into arrow formation in most games right up to Colors as a way of making this trope even more obvious.
* FranchiseZombie: Fans don't like to admit it, but its pretty clear the series will never be able to regain the reputation it once had. This is due to almost the creators who worked on the original games (and some into VideoGame/SonicAdventure) no longer working for Sonic Team. Being a CashCowFranchise, Sega obviously wasn't going to let that stop them and let the remaining members of Sonic Team continue to make games who's qualities are...[[ContestedSequel questionable]], to say the least.
* FreeRangeChildren: Most of the characters are minors (Tails is 8, Amy is 12, Sonic is 15, etc.), and very few of them have legal guardians. Cream (6) lives with her mother Vanilla, Charmy and Espio have Vector, and Blaze is a princess and is stated to have a living family, though they are unseen. In some cases, an explanation is given; Tails is an orphan, and Knuckles is the last of his species. The rest are unexplained.
* FrickinLaserBeams: Used by numerous bosses throughout the series.
[[/folder]]

[[folder:G-M]]
* {{Gainaxing}}: This becomes more prevalent in later games, but especially with Rouge the Bat and her ample "assets".
* GameMod: Fan reprogramming of the series has become so developed and widespread that parts of SEGA themselves have started to approve it. ''SEGA Mega Drive Classics Hub'' even has built in compatibility with fan mods.
* GameplayAndStorySegregation: In 3D games, all the loops and rings and other items are strangely absent during cutscenes.
** Though both versions of Tails mention the rings in one of the cutscenes in ''VideoGame/SonicGenerations'', even wondering [[LampshadeHanging where Sonic puts them all]].
** Also Team Sonic's opening cutscene in ''VideoGame/SonicHeroes'' features a loop.
* GameplayRoulette: The main console games starting with ''VideoGame/SonicAdventure'' have been infamous for this. They have steadily gotten better with this, since ''VideoGame/SonicUnleashed'' and ''VideoGame/SonicGenerations'' only feature two styles of gameplay, and ''VideoGame/SonicColors'' averts it completely.
* GogglesDoNothing: Robotnik gained a pair of them in ''Sonic Adventure'' and, aside from a brief moment in ''Sonic Adventure 2'' and ''VideoGame/SonicTheHedgehog2006'', never used them, maybe because he has the aforementioned ScaryShinyGlasses.
** You can buy a replica pair in ''VideoGame/SonicUnleashed'', and their description points out that [[LampshadeHanging "wearing them has no effect."]]
* GratuitousEnglish: Once Sonic got a voice, though in all fairness, his 'tude[[labelnote:*]]and the fact that [[Creator/JunichiKanemaru his voice actor]] is also an English teacher[[/labelnote]] pretty much [[JustifiedTrope justified it]]. See [[GratuitousEnglish/SonicTheHedgehog here]] for more.
* GravityBarrier
* GreenAesop: This is what the series used to revolve around, with Sonic functioning as a nomadic NatureHero of sorts. Unlike most examples of the latter trope, he is quick to utilize technology to fulfill any tasks he needs to do, but he still seems to carry disdain for Eggman's wanton environmental destruction. Unlike most examples of the former trope, the Aesop was actually ''subtle''.
** This is taken to its apex in ''[[VideoGame/SonicTheHedgehogCD Sonic CD]]'', where Sonic has the ability to prevent Robotnik from turning the future into a post-apocalyptic, mechanized hell by defeating certain robots in the past. One of the cartoons, WesternAnimation/SonicSatAM would take the green overtones of the games and expand on them.
*** ''CD'' also showed that, utilized properly, technology could benefit the environment via the Good Futures, which showed nature and technology working in harmony.
** Every continent you visit in ''VideoGame/SonicUnleashed'' is [[SceneryPorn beautiful]]...then you get to [[ThatOneLevel Egg]][[NightmareFuel man]][[{{Cyberpunk}} Land]].
* GreenHillZone: TropeNamer, and sometimes used as a NostalgiaLevel.
* TheGoodGuysAlwaysWin: Sonic and friends have ''always'' triumphed over Eggman and whatever villain rears their ugly head in the end, no exceptions.
* HardLevelsEasyBosses: Generally, the bosses in the series are easier than the levels, save for a few {{Wake Up Call Boss}}es.
* HashtagForLaughs: Since 2015 and under the influence of a new PR team, the social accounts started posting more silly and self-aware posts, as well as being more involved with their fans. On their Website/{{Tumblr}} account, the posts are usually followed by funny tags telling how their office life is, asking the followers to send drawings of their coworker "Angry Sandra", or teasing the development of ''[[CreatorsPet Big's Big Fishing Adventure 3]]''.
* HeKnowsAboutTimedHits: Tails constantly reminding you to save your game in ''Sonic Chronicles''. You can tell him to stop doing that, though. It won't stop him, but you can.
* HelpfulMook: Many airborne enemies throughout the series like to position themselves so that Sonic could homing attack through them to the place he needs to go.
* HijackedByGanon: The games started using these kind of twists once the series made the leap to 3D;
** ''Sonic Adventure'' was the catalyst of this trend; [[spoiler:Chaos, who Eggman had planned to exploit to destroy Station Square and build Robotnikland, ends up becoming the real threat of the game.]]
** In ''Sonic Adventure 2'', [[spoiler:Gerald Robotnik, despite being dead, ends up becoming the major threat, with his Eclipse Cannon being rigged to destroy the Earth if it got the Chaos Emeralds put into it.]]
** In ''Sonic Heroes'', [[spoiler:Metal Sonic is revealed to be the true villain, having imprisoned Eggman and impersonated him, pulling strings so that he could copy the data of all four teams, all as part of his scheme to get revenge on Sonic.]]
** In ''Sonic Battle'', [[spoiler: Emerl, the robot you were training the whole game, becomes the games final boss.]]
** In ''Sonic Advance 3'', [[spoiler: if you collect all the Emeralds and beat Altar Emerald's boss, Gemerl (a robot that was built from the remains of Emerl) turns against Eggman, steals the Emeralds from you and transforms into a new form, forcing Super Sonic and Eggman to [[EnemyMine team up in order to defeat it.]]]]
** In ''Sonic 2006'', [[spoiler: Mephiles the Dark, who was originally Solaris until he was split between himself and Iblis, kills Sonic, which makes Princess Elise cry, [[SealedEvilInACan which unleashes Iblis]] and allows Mephiles to merge with it back into Solaris, which nearly leads to the space time continium getting destroyed. Eggman is an ant compared to the threat he poses in this game.]]
** In ''Sonic Rush Adventure'', [[spoiler: Eggman and Eggman Nega turn out to be the real threat behind Captain Whisker]].
** In ''Sonic and the Black Knight'', [[spoiler: Merlina is the cause behind everything thats going on in the game.]]
** In ''Sonic Free Riders'', Eggman is the main threat of the game as usual, but [[spoiler:for the final race, Metal Sonic pulls this trope a second time by briefly taking the center stage, having gone behind Eggman's back by disguising himself as another robot so he could secretly study the other racers, and then challenge Sonic to a one-on-one race by using all the data he compiled to his advantage.]]
** In ''VideoGame/SonicGenerations'', [[spoiler: Modern Eggman and Classic Eggman.]]
** ''Sonic Lost World'' has Sonic and Eggman team up for an EnemyMine early in the game, Eggman looking upstaged by the game's villains for the bulk of the game, [[spoiler: but at the start of the last area, Eggman fakes his death and sneaks off to complete his final mech in time to be the game's final boss.]]
* {{Homage}}: Super Sonic is a throwback to ''DragonBall''. The Death Egg is, of course, a StarWars reference.
** The Eclipse Cannon definitely brought the [[StarWars Death Star]] to mind.
* HoverBoard: The Extreme Gear in the ''Sonic Riders'' series.
* HoverSkates: Shadow wears a pair.
* HubLevel: ''[[VideoGame/KnucklesChaotix Knuckles' Chaotix]]'', ''VideoGame/SonicAdventure'', ''VideoGame/SonicTheHedgehog2006'', ''VideoGame/SonicAdvance3'', ''VideoGame/SonicUnleashed'', and ''Videogame/SonicGenerations''.
* HugeHolographicHead
* HumanlikeHandAnatomy: The characters have a strange variation of this; their hands are human-like, but their feet are very... not human, but not exactly those of their derived species, either. Their feet are just...ovals. No features, no toes, nothing. They look like ovaloids flattened on the sole part. Note that [[HalfDressedCartoonAnimal most the characters wear shoes anyway]], so you rarely have to behold their flipper[[http://www.sonicstadium.org/wp-content/uploads/2012/04/sonic_chronicles_conceptart_m2eLD.jpg]] feet.[[http://media.sonicscanf.org/gallery/amy-rose/16.png]]
* ImageSong: Since ''Adventure'', every main 3D installment gives at least each player character one of these.
* IconicSequelCharacter: Sonic and Dr Eggman were the only characters introduced in the first game. Sonic's most well-known friends Tails, Knuckles and Amy Rose were introduced respectively in ''VideoGame/SonicTheHedgehog2'', ''VideoGame/SonicTheHedgehog3'' and ''VideoGame/SonicTheHedgehogCD''. Shadow the Hedgehog from ''VideoGame/SonicAdventure2''.
* InCaseOfBossFightBreakGlass: The series has many bosses defeated in this manner.
* InconvenientlyPlacedConveyorBelt: They are seen throughout various levels in the series.
* InvincibleHero: Sonic ''never'' loses against Eggman, or any other villain for that matter. At worst, they'll just temporarily incapacitate him. [[spoiler:Even ''killing'' him, which Mephiles the Dark succeeded in doing in Sonic 2006, was a short term setback for Sonic thanks to the Chaos Emeralds.]]
* IHaveManyNames: Apparently, whether it's "Eggman" or "Robotnik". As of the Sonic Adventure games, it's now ''both''. Robotnik is his true name, while Eggman is an alias. In territories where the Robotnik name was used, this was established in the first game (See InsultBackfire below), whilst territories that used Eggman established it in the sequel.
* InTheEndYouAreOnYourOwn
* InformedAbility: Sonic's speed is sometimes this relative to the other main characters, especially in the older games before the characters' abilities had [[DivergentCharacterEvolution speciated]] as much. For instance, some of the earlier games contain situations where Knuckles, Tails, and even ''[[{{Acrofatic}} Robotnik]]'' can run as fast as Sonic. Tails can still fly as fast as Sonic runs, but they make sure it looks like he's flying. Not running.
** Especially prominent in the 2D games. In every single one before ''VideoGame/{{Sonic Rush|Series}}'', all characters share the ''exact same'' running and jumping physics, with the sole exception of Knuckles having a lower jump in ''[[VideoGame/Sonic3AndKnuckles Sonic 3 & Knuckles]]''.
** Also, it's said that he can run faster than sound. He never moves anywhere close to this fast in any of the games, CutscenePowerToTheMax or not. At most, he moves a little under three-tenths the speed of sound; which is still incredibly fast (almost as fast as the real fastest thing alive, the Peregrine Falcon).
* InformedFlaw: Eggman is no doubt fat, but it's often said to be from overeating, and we have only seen him actually eat once. Then again, he took down a twelve inch sandwich in two bites during that one instance, so this has some merit.
* InformedSpecies:
** Sonic looks nothing like a real hedgehog. The same goes for every other hedgehog character - Shadow, Amy and Silver.
** Knuckles looks nothing like an echidna, but as [[SeldomSeenSpecies the only echidna in popular culture]], he gets away with it better.
* InsistentTerminology: The early games' manuals were insistent that getting hit with no rings would cause you to lose a [[NeverSayDie "try."]]
* InsultBackfire: Outside of Japan, Robotnik's "Eggman" name was first used by Sonic as an insult in the original ''Sonic Adventure'', and Robotnik promptly corrected him that his name was Robotnik, not Eggman. By ''Sonic Adventure 2'', he's embraced the nickname, presumably because he wanted to use the name "[[AddedAlliterativeAppeal Eggman Empire]]". [[spoiler:Or maybe he embraced it earlier than that, considering he uses it as password on board the Egg Carrier in the first ''Adventure'' game]].
** In Japan, it's implied that this had happened long before the games added voice actors as the Robotnik name was made canon in ''Adventure 2'' via Eggman's relatives, Gerald and Maria Robotnik.
* InvincibilityPowerUp: Present in many Sonic games, whether in classic "starman" fashion from item boxes, to some variations like the purple wisp in Sonic Colors Wii.
* InvisibleAnatomy: The anthropomorphic characters have five fingers, but oddly enough, have no toes. This especially shows with Big and Tikal, who wear sandals. Human characters, on the other hand, do have toes.
* InvincibleHero: Sonic ''never'' loses against Eggman, or any other villain for that matter. At worst, they'll just temporarily incapacitate him. [[spoiler:Even ''killing'' him, which Mephiles the Dark succeeded in doing in Sonic 2006, was a short term setback for Sonic thanks to the Chaos Emeralds.]]
* ItSeemedLikeAGoodIdeaAtTheTime: Knuckles has some really odd, if not outright boneheaded, ways of protecting the Master Emerald from thieves.
* KaizoTrap: The Egg Viper in ''VideoGame/Sonic Adventure'' and Death Egg Robot from ''VideoGame/SonicTheHedgehog4'' will crash through the floor after you beat it, and sent you falling to your doom if you're in the middle of the arena.
* TheKiddieRide: The infamous ''Waku Waku Sonic Patrol Car'' (and less famous ''Sonic Cosmo Fighter'') are actually kiddie rides imbued with a monitor and controls for playing a simple game while the ride is in motion. System 16, an arcade board site, classifies these rides as ''Sega Kiddy Ride Hardware''[[http://www.system16.com/hardware.php?id=847]], and notes that in reality they're usually powered by a Sega C-2 or ST-V board.
** As of 2012, Sega is attempting to re-enter the kiddie ride market with a straight up kiddie ride based on Sonic's car in SonicAndSegaAllStarsRacing[[http://sonic.wikia.com/wiki/File:Sonic_kiddie_ride.jpg]]
* KilledOffForReal: [[spoiler:E-102 Gamma]] remains dead as of ''VideoGame/SonicAdventure''.
** Though [[EvilKnockoff Evil Knockoffs]] of Gamma appeared in VideoGame/SonicAdventure2, and became a minor plot point in VideoGame/SonicBattle.
* KillSat: The ARK. Of course, when the "Kill Sat" part fails (And due to the machinations of Professor Gerald Robotnik), it's ColonyDrop time.
* LampshadeHanging: Omega [[VideoGame/ShadowTheHedgehog once commented]] on the size of Eggman's ridiculously huge bases with:
--> "ERROR! Unable to determine how a base this size has gone undetected. ERROR!"
* LastOfHisKind: Knuckles [[spoiler:until ''Sonic Chronicles'' (and arguably ''Sonic Adventure'')]].
* LaterInstallmentWeirdness: The games from Sonic Adventure and on took the series in very different directions both in tone and gameplay, especially in the mid-2000s. Having human characters appear on a regular basis, the tone generally becoming more serious, the Chaos Emeralds being significantly played up in importance, having new superpowered villains taking the center stage away from Eggman, are just some of the many ways the later games contrast the Classic era of the series.
* LawOfOneHundred
* LawyerFriendlyCameo: The Death Egg for the [[StarWars Death Star]].
* LetsYouAndHimFight: First came Sonic vs. Knuckles, then came Sonic vs. Shadow, then came Sonic vs. whoever Sega decided to pit him against, that game. Spilled over into the comics, as well, with some very painful results.
** At a meta level, this is the M.O. of ''VideoGame/SonicTheFighters'' and ''VideoGame/SonicBattle''.
* LimitedWardrobe: With the exception for spinoffs such as the ''VideoGame/SonicRiders'' games, the characters generally stick to their usual attire.
* LiveItem: The small animals that power Eggman's badniks in the ''VideoGame/SonicAdventure'' titles.
* LoadsAndLoadsOfCharacters: To an extent; many of the later titles feature an excessive amount of key characters, albeit usually from the same pile of a dozen or so, with some one shots as well. It's more a case of Loads and Loads of Main Characters. Recent games have cut down on this however, mainly focusing on Sonic, Tails, Eggman, Orbot, and Cubot, while other characters play minor roles.
* LoadsAndLoadsOfLoading: ''VideoGame/SonicTheHedgehog2006'' is infamous for this.
* LongRunnerCastTurnover:
** Happened in 1998 with the ''VideoGame/SonicAdventure'' reboot; many characters like Fang the Sniper were removed in favor of new characters like Shadow and Blaze.
** Happened again to a lesser extent in 2008 with ''VideoGame/SonicUnleashed''. While other characters are still present, their roles were greatly minimized, with Sonic himself being the only playable character, and the plots focusing on Sonic, Tails, Eggman, and newcomers Orbot & Cubot, with a few one-off characters that serve as plot devices.
* MalevolentMugshot: Robotnik/Eggman's face has showed up on everything from MechaMooks to spacecraft.
* MascotWithAttitude: Sonic the Hedgehog himself, the TropeCodifier.
* MeaningfulName: Practically everyone has one. Sonic is faster than sound, Knuckles has spikes on his fists, etc.
** "Robotnik" is derived from [[BiLingualBonus the Czech word for "servitude"]]. Guess what Eggman tries to do in every game.
** "Eggman" with his [[http://images3.wikia.nocookie.net/__cb20090925135428/sonic/images/a/aa/Robotnik_43.png Classic Era Jumpsuit]], designed to make him [[Music/TheBeatles to look like a Walrus]], it doubles as a ShoutOut. (The yellow triangles from his cape represent the teeth in case you are wondering, the rest is plain obvious).
** Tails has ''two''. His nickname, Tails (for obvious reasons), and his PunnyName, Miles Prower.
* MadeOfIron: ''Everyone'' is, it seems to be a part of the way creatures function in-universe,[[StrongFleshWeakSteel few machines can compete with their durability]].
* MeanwhileInTheFuture: ''VideoGame/SonicTheHedgehog2006'' was horrible about this. Characters will shout "WE'VE GOT TO HURRY!" and run as fast as they can... [[SanDimasTime to save somebody 200 years in the past.]]
* MechaMooks: Eggman loves them.
* MercyInvincibility: As long as you had at least one ring or shield to your name, this'll kick in when you're hit... unless you're bouncing on spikes in the first version of the original game.
* MineralMacGuffin: The Chaos Emeralds. Generally, no matter what the world-threatening danger is the Chaos Emeralds will either unleash it or stop it.
** Also the Time Stones, Chaos Rings, Master Emerald, Super Emeralds, Sol Emeralds, World Rings...
* MoodWhiplash: Pretty much a staple of the series itself. Things can go from humorously comedic to dark and apocolyptic in a manner of moments.
* MorallyAmbiguousDoctorate: Robotnik, with his grandfather Gerald providing a FaceHeelTurn variant.
* MotionBlur: He's even [[FanNickname nicknamed]] "The Blue Blur". In some of the 3D games, Sonic can create a blur by Spin Dashing. In fact, everyone who can use the Homing Attack has their own motion blur.
* MsFanservice: Rouge the Bat was a bizarre attempt at trying to introduce this kind of character into a series otherwise aimed at kids. Her design is basically if you took Morrigan from VideoGame/{{Darkstalkers}} and turned her into a cartoon bat. Besides her exposed cleavage and tight fitting jumpsuit (which could be replaced with an even ''more'' skimpy outfit in the original Dreamcast version of ''Sonic Adventure 2''), she even acts promiscuous and flirty with the other characters. The tie-in series like Sonic X did not shy away from this aspect of her character.
* MultipleChoicePast: Dr. Eggman Nega. In ''VideoGame/SonicRush'' and ''Sonic Rush Adventure'', he's Eggman from a parallel universe. In the ''VideoGame/SonicRivals'' games, however, he's Eggman's descendant from 200 years in the future.
* MultipleDemographicAppeal: The games, animated series and merchandising have all long been popular across many ages and both genders. This is probably at least in part due to the fact that many of the people who played the original games in the early nineties are now in their twenties and it's nostalgia setting in. It helps that all ''Sonic'' games have a good mix of SceneryPorn, AwesomeMusic, and lots of AwesomeMoments with a little [[DarkerAndEdgier darkness]] and {{Fanservice}} thrown in. Unfortunately, this means you get FanDumb from all directions.
* MultipleEndings: Dates all the way back to the first game, though it wasn't until ''Sonic 3 & Knuckles'' that the difference was of any significance. ''VideoGame/ShadowTheHedgehog'' has 10 different endings, plus the final ending, and 326 total ways to complete the game.
* MythologyGag: Sonic's favorite food is chilidogs. This was created by [=DiC=] for the cartoons. ''Sonic Chronicles'' and ''VideoGame/SonicUnleashed'' are full of them. He's also seen eating two in the beginning of ''Sonic and The Black Knight''.
** Also in Sonic Riders, "''You're'' supposed to be the [[WesternAnimation/SonicSatAM fastest thing alive?]]"
** "Who ordered the chilidog?" from TheStinger of some of the commercials for the new VideoGame/MarioAndSonicAtTheOlympicGames in {{London}}.
[[/folder]]

[[folder:N-Z]]
* NoConservationOfEnergy
* NoEnding: Combined with SequelHook. ''Sonic Chronicles'' ends with [[spoiler:Sonic and friends learning that Eggman has taken over the world.]] [[AnimatedActors And then they thank Bioware for being awesome.]]
* NonstandardCharacterDesign: Rouge the Bat, being [[ExPy an animal take on]] [[VideoGame/{{Darkstalkers}} Morrigan]], is an anomaly in the otherwise noodle limbed character designs in the series, since she has a much more anthropomorphic figure, complete with human like breasts and legs suggesting actual anatomy.
* NoodlePeople: Everyone after the ArtShift in ''VideoGame/SonicAdventure''. The characters were pot-bellied in design prior to this.
* NoSidepathsNoExplorationNoFreedom: Some of the more recent entries are sometimes criticized for having too much running and not enough platforming.
** Conversely, the games that tend to receive this criticism generally feature more alternate paths and [[GottaCatchEmAll collectable items]] than earlier 3D games.
* NoblewomansLaugh: Robotnik's Santa-esque chuckle.
* NostalgiaLevel: The extra 3D version of the original ''Sonic the Hedgehog's'' Green Hill Zone in ''Sonic Adventure 2''.
** There are also Nostalgia Bosses in Sonic Advance, in the form of Sonic 1 and 2's first bosses in the X-Zone.
** Sunset Hill Zone from ''Sonic Advance 3'' certainly qualifies. It even has the music!
** The final level in ''Sonic Chronicles'' can apply sorta. It has a remixed version of the Final Boss fight from ''Sonic 3 & Knuckles''.
** Sonic Battle has Green Hill Zone as an unlockable stage.
** [[FloatingContinent Sky Sanctuary Zone]] in ''[[VideoGame/Sonic3AndKnuckles Sonic 3 & Knuckles]]'' features two Nostalgia Bosses. Mecha Sonic shows up piloting the boss vehicles from the first zone of ''Sonic the Hedgehog'' and the eighth zone of ''Sonic the Hedgehog 2'' before you fight him quill-to-quill.
*** And said hog-to-mecha-hog fight shares some patterns with the ''Sonic 2'' version of Mecha Sonic (aka [[FanNickname Silver Sonic]]).
** ''Sonic Rush Adventure'''s Hidden Island 16 is a remake of act 1 of Leaf Storm the first zone of Sonic Rush.
** Wave Ocean from 06 is very much like Emerald Coast in ''Adventure 1'', intentionally of course. In both levels Sonic gets chased across a bridge by an orca.
*** Adabat's levels in VideoGame/SonicUnleashed are very similar to Emerald Coast and Wave Ocean, though without any chase scene.
** ''Sonic the Hedgehog 4'' is pretty much a Nostalgia ''Game''.
** Taken to UpToEleven levels in ''VideoGame/SonicGenerations'', you have 2.5D and 3D re-imaginings of levels from almost ''every game'' since Sonic 1 to Colors. You Also have Sonic, Tails and [[spoiler: Eggman]] in their classic looks with Sonic being voiceless and Metal Sonic returns as a boss.
* NotAllowedToGrowUp: Sonic has been around long enough to have had major changes to his voice and physique, and only vaguely remember his earliest adventures. But Modern Sonic is officially 15 both before and after his 'birthday' in the beginning of ''VideoGame/SonicGenerations''.
* ObviousBeta: ''VideoGame/SonicTheHedgehog2006'' and ''VideoGame/SonicBoomRiseOfLyric''. To [[UpToEleven ridiculous levels]].
* OncePerEpisode: Once the characters started to have voice actors by ''VideoGame/SonicAdventure'', the line "Long time no see!" is always uttered at least once in every game.
* OffModel: This [[http://www.youtube.com/watch?v=DxV7495Oabw Pakistan [=McDonald=]'s commercial]] has gained some infamy for it.
* OffscreenVillainDarkMatter: No matter how much havoc Sonic wreaks on Robotnik's bases, he's always got enough badniks, {{eternal engine}}s and {{wave motion gun}}s for another world domination bid come next game. It reached a peak in ''Sonic Adventure'', where after Sonic and co. spend the entire game taking down the Egg Carrier, he shows up with ''another Egg Carrier'' to try and subdue Chaos.
** Further still, in ''VideoGame/SonicUnleashed'', he produces a giant fleet of space battleships solely as ''bait'' for Super Sonic.
* OneGameForThePriceOfTwo: The series has a nasty habit of foreshadowing events of games that are only playable on other consoles, especially with the Wii. Liked ''VideoGame/SonicColors'' and want to play the direct sequel ''VideoGame/SonicGenerations''? If your PC isn't built for gaming, then enjoy shilling out triple-digit monetary values for a 360 or [=PS3=]. If you bought ''VideoGame/SonicTheHedgehog4'' ''Episode I'' on WiiWare and want to play ''Episode II''? Same deal (and to unlock ''Episode Metal'' will cost ''even more!'').
* OneHitPointWonder: Assuming they have no rings, every character would count as this, but this is not the case. Final Zone and Death Egg Zone in ''Sonic 1'' and ''2'', respectively, have no rings whatsoever, effectively rendering Sonic a One Hit Point Wonder for the final confrontations. The 8-bit versions of ''Sonic 1'' and ''2'' took this even further by offering no rings for ''any'' of the boss encounters.
* OnlyKnownByTheirNickname: Many people don't remember that Tails' real name is [[PunnyName Miles Prower]].
** Eggman/Robotnik was {{retcon}}ned in later installments to be Robotnik nicknamed Eggman. Naturally, the Eggman name is used a lot more than the Robotnik one, even by himself.
* OnlySixFaces: The design style for the characters tends to be very strict. Nearly every character has either Sonic's or Tails' facial structure, and even in terms of body have the same 'noodle limb' proportions, albeit with slightly varying height. Minor characters tend to subvert this however.
* OurWerebeastsAreDifferent: Sonic the Werehog.
* OxygenatedUnderwaterBubbles: Present throughout all of the 2D games where a DownTheDrain, UnderwaterRuins, or UnderTheSea level is present. Also exists in ''VideoGame/SonicAdventure'', ''VideoGame/SonicAdventure2'', ''VideoGame/SonicColors'' and ''VideoGame/SonicGenerations''.
* PantslessMalesFullyDressedFemales
* PeopleJars: Dr. Robotnik captures animals and stores them in capsules, which act as Jars. His main use for them is to brainwash them to control his robots for him, so the robots somewhat act as Jars as well. In both cases, Sonic and the gang can free them; the capsules have a switch, while the robots can be destroyed and the animal within will be fine.
* PhysicalGod: Chaos the God of Destruction, Illumina the Goddess of Dreams, the Master Emerald, [[spoiler:Chip a.k.a Light Gaia]], and possibly Solaris and Emerl who are also refered to as Gods, [[NoSuchThingAsSpaceJesus even though they are both artificial.]]
* PinballSpinoff: ''[[VideoGame/SonicTheHedgehogSpinball Sonic Spinball]]'' and ''VideoGame/SonicPinballParty''
* PinballZone: Almost every game in the series has at least one pinball-themed level, whether a regular level or a BonusStage. Despite the "zone", the TropeNamer is not from this series.
** Act 2 of Casino Street Zone in the {{iOS|Games}} version of ''Sonic 4'' is nothing but a pinball machine where you need to get a certain amount of points in order to complete it.
* PinkGirlBlueBoy: Amy and Sonic, obviously.
* PlanetOfCopyhats: Apparently speediness is an anthro trait.
* PlatformGame
* PlotCoupon: The ubiquitous Chaos Emeralds and their daddy, the Master Emerald.
* PolygonCeiling: A notable example [[note]]The trope's [[Administrivia/RenamedTropes original name]] was "Sonic Syndrome"[[/note]]: Sega have acknowledged that the 3D Sonic games - up untill ''VideoGame/SonicColors'' - have a (not entirely unfounded) reputation of being plagued with [[CameraScrew bad camera angles]], poor level design, and shaky controls. It's ultimately down to personal opinion as to which of the 3D games is the prime culprit. At the same time, the 2D ''Advance'' and ''Rush'' series released at the same time were quite highly regarded, which (along with a heavy sense of {{Retraux}}) could explain why ''VideoGame/SonicColors'' includes a lot of 2D platforming.
* PopCultureOsmosis: Some evolutionary biologist must have been a Genesis gamer in his or her youth, as one of the genes involved in the development of the feather in birds and teeth in humans has been [[http://www.ncbi.nlm.nih.gov/pubmed/8906419 dubbed]] "Sonic hedgehog." [[http://en.wikipedia.org/wiki/Sonic_hedgehog No, really.]]
** On a side note, if that gene gets mutated in any way in fetuses, the fetus will be born with ConjoinedEyes, just like the many hedgehogs in this series.
* PopStarComposer: Masato Nakamura (from the J-pop band Dreams Come True) composed the music for ''Sonic the Hedgehog'' and ''Sonic the Hedgehog 2''. Famously, Music/MichaelJackson was supposed to compose for ''Sonic the Hedgehog 3''. What happened then? [[UrbanLegendOfZelda Nobody quite knows, but everybody has an opinion.]] Jun Senoue and his band Crush 40 wrote music for several of the 3-D games. R&B musician Akon remixed Dreams Come True's "Sweet Sweet Sweet" for ''Sonic 2006''. This goes all the way to ''Sonic Colors'', where Music/CashCash performs the main theme.
* PowerDyesYourHair: Sonic's various transformations throughout the years.
* ThePowerOfFriendship: The {{Macguffin}}s of the series are far more powerful when used by the positive feelings of the cast, as opposed to negative feelings. This trope is especially {{Anvilicious}} in ''VideoGame/SonicRush'' and ''VideoGame/SonicHeroes''.
* PowerUpMagnet: The Magnetic Shield, which debuted as the Lightning Shield in ''[[VideoGame/Sonic3AndKnuckles Sonic 3 & Knuckles]]''
* PowerUpMotif: Invincibility powerup has a theme in games where it exists.
* PrepareToDie: One of Eggman's phrases in ''Sonic Battle."
* PrivateDetective: Vector, Espio and Charmy were revamped into this role for ''VideoGame/SonicHeroes'' onwards.
* ThePsychoRangers:
** Metal Sonic, Tails Doll, and Metal Knuckles in ''VideoGame/SonicR''.
** Dr. Eggman, Shadow and Rouge in ''VideoGame/SonicAdventure2''.
** The Babylon Rogues in ''VideoGame/SonicRiders''.
* PunnyName: Miles "Tails" Prower, and Dr. Ivo "Eggman" Robotnik (and his legion of egg-themed machines). Also, Super Sonic.
* PuzzleBoss
* PuzzlePan
* {{Reconstruction}}: Since the flop of [[VideoGame/SonicTheHedgehog2006 Sonic '06]], the games seem to be trying to go back to the original Platforming and Speed outlook of the Genesis series.
* RecurringRiff: In many Sonic games, the main theme of a particular game can be heard throughout the game.
* ReformedButNotTamed: Various characters who started off as foes to Sonic will end up on his side, but still clash against him every now and then. Shadow is a prominent example.
* ReplayValue: Sonic games generally have a low number of stages compared to most other platformers; which would make the game very short otherwise. What it lacks in stage number is more than made up for in the amount of alternate paths that you can take in getting to the goal. In several games, the replayability is even added to with the Chaos Emeralds, as finding them requires all your exploration ability. Adding onto THAT, is the fact, since the games were designed with speedruns in mind, is the ability to replay levels and learn how to get faster and faster times, improving your rank if the game has them.
* RetCanon:
** The clear use of [[MechaMooks SWAT]][[WesternAnimation/SonicSatAM Bots]] and roboticized animals in ''VideoGame/SonicChronicles''.
** The confirmation of Sonic's [[TrademarkFavoriteFood favorite food]] being [[WesternAnimation/AdventuresOfSonicTheHedgehog chi]][[WesternAnimation/SonicSatAM lid]][[ComicBook/SonicTheHedgehog ogs]] in the Japanese version of ''[[SonicAdvanceTrilogy Sonic Advance 3]]'', ''VideoGame/SonicUnleashed'', and ''SonicAndTheBlackKnight''.
** The true purpose of Shadow's Inhibitor Rings, shown in the ending of his story in ''VideoGame/SonicTheHedgehog2006'', originated in ''SonicX''.
* RevisitingTheRoots: The series, after going 3-D and having elaborate storylines and darker characters, begot ''SonicAdvance'', which played in 2-D and was very reminiscent of ''VideoGame/SonicTheHedgehog2'' in stage design, game mechanics, and the simple plot of "Dr. Eggman kidnaps animals; Sonic rescues them."
** Less successful was ''VideoGame/SonicTheHedgehog4 Episode I'', which was another try at going back to basics. However, its physics made it impossible to play like the old games, making this a failed attempt.
** This would be remedied, ironically, in a game designed to evolve the series further: Part of the premise of ''VideoGame/SonicGenerations'' is that Sonic from the classic games is brought forward in time to the present. Classic Sonic plays very close to the original games, much closer than in ''Sonic 4'', and is near indistinguishable in the [[Nintendo3DS 3DS]] version. Classic Sonic was so well-received, considering the fandom's BrokenBase, that ''Sonic 4: Episode II'' will be based on Classic Sonic's physics in ''VideoGame/SonicGenerations''.
* RidiculouslyCuteCritter:
** The small animal friends you rescue in the older Sonic games, and ''VideoGame/SonicTheHedgehog4''.
** The Chao in the ''VideoGame/SonicAdventure'' games.
** The Wisps in ''VideoGame/SonicColors''.
*** ''SonicRunners'' introduced baby Wisps, which, among other changes from their older counterparts, all constantly have pacifiers in their mouths.
* TheRival: Sonic tends to attract a lot of these characters for various reasons.
** Originally it was Knuckles. In his debut, Knuckles fought against Sonic & Tails due to [[ManipulativeBastard manipulations]] by Dr. Eggman. After Eggman revealed himself as the BigBad, Knuckles teams up with the duo to stop him. Afterward, probably due to their egos, Sonic & Knuckles clashed for one reason or another, mostly due to the latter [[UnwittingPawn being tricked by Eggman into doing so.]] Their rivalry has kind of dissipated in recent years due to other adversaries showing up and Knuckles becoming more of an ally, but still pops up now and then.
** Since Sonic & Knuckles were slowly becoming friends, Shadow debuted as the new, darker rival for Sonic. Unlike Knuckles, Shadow was ''not'' being tricked into fighting the heroes and was in fact a dangerous foe in his debut. Originally didn't pay Sonic much attention outside of accusing him of copying his style, but due to Sonic's tenacity and cheating death he earned Shadow's respect and acknowledgment as a WorthyOpponent. Even after Shadow's eventual HeelFaceTurn, this dynamic is retained and the two clash quite often before teaming up against a common foe.
*** Debuting alongside Shadow was Rouge the Bat, who served as TheRival to Knuckles. They're both treasure hunters, but it's more of a hobby for Knuckles and he guards the all powerful Master Emerald instead, while Rouge is an outright thief who attempts to steal it. This dynamic tends to be laced with FoeYay however.
** [[PsychoRangers The Babylon Rogues]] to [[PowerTrio Team Heroes]] in the ''VideoGame/SonicRiders'' series. Jet to Sonic, Wave to Tails, and Storm to Knuckles respectively. Since the premise of the series is racing, this is a bit more justified; that and the Rogues are just jerks. Jet definitely takes it the farthest though, being almost obsessed with proving that he's the fastest there is, and since Sonic is known as "The Fastest Thing Alive"...
* RoaringRampageOfRevenge: Shadow's reaction to Maria's death. Attempt on humanity prevented by Amy. Results in the genocide of the entire Black Arms race as Black Doom can be considered indirectly responsible for her death.
* RollingAttack: Sonic can do that. Often others do rolling attacks too.
* RousseauWasRight: In ''VideoGame/SonicAdventure2'', Amy of all people stops Shadow's RoaringRampageOfRevenge with a speech about this.
%%* RuleThirtyFour
* RunningGag: There's very few that last more than a single game, but Knuckles getting tricked by Eggman, for one, eventually turned into this.
** If it's an entirely 2D Sonic game, expect there to be a pit with two springs facing each other in at least one level.
* SanDimasTime: The level timers in ''Sonic CD'', where you regularly travel hundreds of years through time mid-level on a regular basis.
* SceneryPorn: ''Sonic'' games are designed to push the graphical power of any console they're on, whether it be the Genesis[=/=]Mega Drive, Dreamcast, Wii, [=PS3=], ''any console''. Special mentions in this regard include the original Genesis games, ''VideoGame/SonicUnleashed'' and ''VideoGame/SonicColors''. Sonic CD had some SceneryGorn in its Bad Future stages, though the Good Futures could potentially outdo the past and present with the area showing technology maintaining the environment instead of destroying it.
** Recent home console titles like ''Unleashed'' and ''Generations'' use Sonic Team's aptly-named graphics rendering tool, the Hedgehog Engine, which is capable of rendering close-to-CG quality imagery. Whilst graphical output is undoubtedly impressive, the results are definitely best viewed in 60fps and 1080p in the PC version of ''Generations''.
*** Recently the modding scene for ''VideoGame/SonicGenerations'' [[DummiedOut unearthed an incomplete version of the Sonic Unleashed rendering engine]] Even in it's broken state, by fixing what they could, they were able to activate it which activated directional shadows, light shafts, more advanced (although partially broken) speed blurring and a noticeable FPS bump brought about by it's broken state. [[UpToEleven The effect that such seemingly trivial features had on the already gorgeous stages is jawdropping. Especially in stages like Sky Sanctuary and Seaside Hill.]]
** Supposedly, on the day that Nintendo unveiled the Super Nintendo Entertainment System (Which was also the same day SEGA unveiled the original Sonic game), a reporter went to a SEGA Rep and touted the increased graphical capabilities of the SNES over the Mega Drive; specifically citing the vast increase in the number of colors the system was capable of. The SEGA Rep's response was to take him to a curtained off area, and show him screenshots of Sonic and the latest ''Mario'' game, before asking "[[BadassBoast Who has more colors?]]"
** [[HubLevel Mystic Ruins]] from ''VideoGame/SonicAdventure'' ''is'' this trope, adapting many of the breathtaking landscapes and sceneries the dev team witnessed on their trip to Central America.
* SchizoTech: ''Sonic Adventure'' and ''Sonic Adventure 2'' feature relatively innocuous and modern aesthetics, while just about everything from ''Sonic Heroes'' on features clearly futuristic technology.
* SealedEvilInACan: It started with Chaos in ''Sonic Adventure'' and has become increasingly more evil, more sealed, and more canny from there.
* SeldomSeenSpecies:
** How many hedgehogs in fiction can you name off the top of your head, much less ones that headline a whole series (porcupines don't count)?
** Knuckles has the honor of being the only major character in all of mainstream fiction (not counting in-universe characters) to be an Echidna, which is already a rather unknown animal.
* SensitiveGuyAndManlyMan. Sonic (manly man) and Tails (sensitive guy)...however, when it comes to Knuckles, Sonic is the Sensitive Guy while Knuckles is the Manly Man.
* SetBonus: The Chaos Emeralds in most games. Whether they allow the player to become Super Sonic, view the true ending, or both.
* ShooOutTheNewGuy: Silver started out overhyped, but since ''Sonic '06'' and the ''Rivals'' games, he's pretty much been reduced to being a member of multiplayer rosters.
* ShoutOut:
** ''Anime/SonicX'': Eggman's various mechas were references to Thunderbird 2, Great Mazinger, and the USS Enterprise. In addition, one of Eggman's robots referenced ''Manga/CuteyHoney''.
** Also see the examples of LawyerFriendlyCameo, which have been present since ''VideoGame/SonicTheHedgehog2''.
** ''VideoGame/SonicChronicles'' includes Swat Bots, based on the {{Mooks}} from the [=SatAM=] show. Sonic also mentions chili dogs, a reference to his TrademarkFavoriteFood in the US shows. It also has the resident KillerRobot [[KnightsOfTheOldRepublic refer to the organic characters as "Meatbags".]] (Not surprising given [[{{Bioware}} the developer.]]) It also includes a [[Film/OfficeSpace red stapler.]]
** [[Anime/DragonballZ Super]] [[strike:[[Anime/DragonballZ Saiyan]]]] Sonic. In earlier games, his ''eye'' color actually changes to facilitate this.
*** Also, was there anyone who got Rouge's Treasure Scope in Sonic Adventure 2 without immediately thinking of a scouter [[OverNineThousand and eventually a famous phrase?]]
** G.U.N is thought by some to be a reference to [[MarvelUniverse S.H.I.E.L.D.]]
** As stated above, Eggman is a reference to the [[Music/TheBeatles I Am The Walrus]] song.
** [[VideoGame/{{Darkstalkers}} Man, Rouge sure looks familiar....]]
* ShutUpHannibal: Shadow has done this twice, once to Black Doom in the final story of ''Shadow the Hedgehog'' and later to Mephiles at the end of his story in ''Sonic 2006''.
* SigilSpam:
** Sonic the Hedgehog makes a ''lot'' of [[http://sonic.wikia.com/wiki/List_of_cameos_and_references cameo appearances]] in other Creator/{{Sega}} games. He even appears in the Sega CD and Sega Channel boot up. He is their mascot, and they want you to know it.
** Some post-VideoGame/SonicAdventure games (including the SonicAdvanceTrilogy) show Eggman's property having a stylized depiction of his face on them (its design is inconsistent from game to game). The same goes for G.U.N.
* SingleUseShield:
** Sonic collects rings. If he's hit, he loses his rings instead of dying.
** The shields found throughout the series also qualify.
*** In the first [[VideoGame/SonicTheHedgehog1 two]] [[VideoGame/SonicTheHedgehog2 games]], they did nothing more than take one hit for you.
*** In ''VideoGame/Sonic3AndKnuckles'' and the Xbox 360, [=PS3=], and PC version of ''VideoGame/SonicGenerations'', Flame, Water and Lightning Shields are available. While they are active, they protect the player from flames, let the player breathe underwater and attract rings, respectively. All three will (at least in ''S3&K'') reflect projectiles without taking damage, but they still disappear after one hit from anything else (and in the case of flame and lightning, touching water). They even grant special powers to Sonic, activated on pressing the jump button while in midair (replacing his weak "Insta-Shield" move that slightly extends the range of his jump attack momentarily): the Flame Shield lets him dash forward rapidly; the Water Shield lets him dash ''downward'' rapidly ({{Ground Pound}}!); while the Lightning Shield gives him a {{Double Jump}}.
*** The 3D games, the ''{{Sonic Advance|Trilogy}}'' series, and its [[VideoGame/SonicRushSeries handheld]] [[VideoGame/SonicGenerations successors]], have two shields available. They both act the same as in the first two games, but one will attract rings.
*** The fan-made ''VideoGame/SonicRoboBlast2'' has no less than ''five'' such shields available -- the blue Force Shield, which can take two hits; the white Whirlwind Shield, which gives your character a double jump; the green Elemental Shield, which makes you fully immune to environmental hazards; the red Armageddon Shield, which can be detonated to damage everything nearby; and the yellow Attraction Shield, which draws in rings, but shorts out in water.
* SlaveMooks: The little robots with animals in them.
* SlidingScaleOfAnthropomorphism: Most of the main characters are FunnyAnimals, excluding the humans, robots, and non-anthro animals. Rouge is a borderline [[PettingZooPeople Petting Zoo Person]], as she is much more humanlike then the rest of the animals.
* SlidingScaleOfRealisticVersusFantastic: Sonic lies far on the fantastic end of the scale, with the possible exception of ''Sonic 2006''.
* SmallAnnoyingCreature: [[VideoGame/SonicUnleashed Chip]] and [[VideoGame/SonicAdventure2 Omochao]] love flying around and dispensing useless advice.
* SmashingHallwayTrapsOfDoom: Levels in classic Sonic series have a lot of them. Some of them are in 3D games too.
* SpaceDoesNotWorkThatWay: This pretty much describes most of Sonic's space exploration levels, with his sequence of hanging on to Robotnik's rocket ship escaping into the upper atmosphere and managing to reach the Death Egg in space being one of the most accurate examples.
* SpikeBallsOfDoom: Very commonly used. A lot of them can be found within stages, one of the notable enemies called Orbinaut has spiked balls surrounding it and many bosses fire spiked balls, too.
* SpikesOfDoom: One of the common elements throughout the series. There is also the infamous [[GoodBadBugs Spike Bug]]. Its name is something of an ArtifactTitle, as there is substantial evidence now that it's not a bug and was intentionally programmed in (though it was "fixed" in later revisions of ''Sonic 1'').
* SpinAttack: Sonic's trademark maneuver. Comes in normal and [[ChargedAttack Spin-Dash]] flavors (in certain games).
** RollingAttack
* TheSpiny: A fair number of Badniks qualify, although since the standard attack method is to hit an enemy while curled into a ball rather than necessarily to hit it from above, some of these are covered in spikes or other harmful stuff on all sides, rather than just the top, and must be defeated by waiting for them to revert to a vulnerable state or using invincibility. Others, though, look more like the Spinies of other games and can be dispatched by rolling into them. Oddly enough, an enemy with this exact name is not an example of this.
* SpiritualSuccessor: The Chao Gardens which debuted in the ''Adventure'' games are this to the Nightopians from NightsIntoDreams. The Chao are even based on an upgraded version of the A-Life system from NiGHTS.
* SpringsSpringsEverywhere: Springboards are common objects in ''Sonic'' series. Often other things like bumpers and sometimes even clouds do the same thing too.
* SprintShoes: Most games in the series have these, generally called High Speed Shoes[=/=]Super Sneakers[=/=]Power Sneakers depending on the game.
* StandardPowerupPose: When anyone goes into their SuperForm they usually adopt this pose.
* StarfishRobots: Dr. Eggman has created a ton of these. See the trope page for details.
* StealthPun: Dr. ''Ivo'' "Eggman" Robotnik. "Ivo" is an anagram of "Ovi", the latin term for an egg.
** And for a Bonus, according to WordOfGod, the "I" in "Ivo" is pronounced with a soft "e" like in many European languages instead of the usual English "ae", to make "Ivo" (Eevo) sound like "Evil".
* SteamVentObstacle
* StrictlyFormula: The series almost always sticks to two basic plots;
** The original games almost always used the basic [[ExcusePlot "Mad scientist is making trouble, go stop him!" plot]], with very few exceptions or different villains, and even the handful of new villains in spinoff like TailsAdventures tended to be [[GenericDoomsdayVillain one note bad guys]] who would [[VillainOfTheWeek vanish after their debut.]]
** From ''VideoGame/SonicAdventure'' and on, the main series tried to shake things up by shifting from the previous basic plot to introducing [[TheEndOfTheWorldAsWeKnowIt grand scale conflicts]] inflicted by a new, monstrous villain or occasional AntiVillain, [[EvilIsNotAToy usually unwittingly released by the main villain, who is often usurped in threat by it]], complete with a climatic showdown with it in an eleventh hour superpowerful form--but unfortunately, this (especially the latter) ended up becoming an overused series formula as well.
** Currently, the series has fallen back on the more straightforward formula of the original games, while sandwiching in some new minor villains along the way.
* SuperDeformed: The bulk of the series cast has ridiculously large heads in contrast to their small bodies, almost Bobblehead like in proportion.
* SuperDrowningSkills / WalkDontSwim: Since his first appearance in 1991, Sonic has never been able to swim. His allies, Tails and Knuckles, can. Sonic sinks like a rock in water and relies on air bubbles to survive underwater. This is taken to its logical extreme in some of the recent games, where even contact with water causes instant death.
** In the ''Mario & Sonic'' games, Sonic wears a life jacket during the swimming events.
** As of ''Sonic Colours'', Sonic can swim upwards by jumping in the water, ''Mario''-style. The yellow Wisp also turns him into a tornado underwater, giving him basically complete maneuverability. Suddenly the great blue terror isn't so terrible.
* SuperMode: For Sonic, Shadow, and Silver when they get all seven Chaos Emeralds, their [[DoesThisRemindYouOfAnything fur stands up]] [[Manga/DragonBall and becomes]] {{golden|SuperMode}}. Admittedly, Yuji Naka actually is a fan of ''Dragon Ball'', and it had a big influence on ''Sonic''. Blaze the Cat also has one using the Seven Sol Emeralds, though appearance-wise, it's merely a palette swap, with her lavender fur turning pink, and her purple coat turning red. Tails and Knuckles also have Super forms, but the effect is downplayed - They retain their normal appearance, simply gaining a glowing aura.
** The resemblance is even more uncanny when one looks at [[TheHero the]] [[GoodIsNotNice characters]] [[KidFromTheFuture involved]].
* SuperSpeed: Sonic is the foremost example, but nearly every character in the series has some level of this, even ''Eggman''.
** Taken to the next level in the Movie where Metal Sonic is able to fly in and out of the atmosphere in seconds and both him and Sonic are able to get to distant parts of the world in very short amounts of time. Taken UpToEleven in ''Anime/SonicX'' where Sonic was able to ''outrun a lightning bolt'' in his base form.
* SuperStrength: While it is usually power characters like Knuckles and Omega that have this emphasized, almost all characters have some level of it. In the movie and Sonic X even Sonic is capable of incredible feats of strength that would give game Knuckles pause.
* TheTeam: Various throughout the series, ''VideoGame/SonicHeroes'' takes this and runs with it with no less than four teams of {{Power Trio}}s. The breakdown is as followed:
** '''Team Sonic:'''
*** Sonic: TheHero, and pretty the de facto [[TheLeader leader]] of the good guys.
*** Tails: KidSidekick as well as the local GadgeteerGenius.
*** Knuckles: HotBlooded BareFistedMonk.
** '''Team Dark:'''
*** Shadow: AloofAlly, as well as playing TheRival to Sonic.
*** Rouge: ClassyCatBurglar[=/=]KickChick
*** Omega: RoboticPsychopath with a HyperspaceArsenal of weapons.
** '''Team Rose:'''
*** Amy: PluckyGirl, as well as TheHeart
*** Cream: TagalongKid, with Cheese as the TeamPet
*** Big: GentleGiant, with Froggy as a secondary TeamPet
** '''Team Chaotix:'''
*** Espio: TheSneakyGuy, being a ninja and all.
*** Charmy: Second TagalongKid after Cream.
*** Vector: DefectiveDetective, he's got a few quirks but nonetheless a brilliant detective.
* TeamRocketWins:
** Eggman has never bested Sonic in the long run, but there has been a handful of times where he managed to get the upper hand. In ''Sonic Adventure 2'' this happens a couple of times--the destruction of Prison Island, the firing of the Eclipse Cannon and the scene where [[http://www.youtube.com/watch?v=b8t0WJTx5XM Sonic nearly dies]] (and is conveniently saved because Sonic somehow knew how to use Chaos Control). In VideoGame/SonicUnleashed, he actually manages to defeat ''Super Sonic'', steal the Chaos Emeralds from him, tear apart the planet and sent Sonic flying helplessly out into space.
* TeensAreShort: The teenage heroes such as Sonic, Blaze, and Knuckles are significantly shorter than the adult Vector the Crocodile and Vanilla the Rabbit.
* TemporaryPlatform: All over the place in numerous games.
* ThemeMusicPowerUp: When Sonic goes SuperMode, usually by the end of the game. Or when picking up invincibility powerup.
* ThereAreNoAdults: Only Cream is shown to have a parent, and only one adult, Dr. Robotnik, is a main cast member.
* ThisIsADrill: Classic Sonic games had at least one type of badnik with a drill. Sonic 2 and 3 also had bosses with drills. Sonic Colors introduces enemies with drills to 3D.
** One of the bosses in ''Sonic Unleashed'' had a drill.
** Sonic Colors also has the yellow wisps which turn Sonic into a drill.
* ThreePointLanding: Sonic and friends like to do that in newer games sometimes.
** [[VideoGame/SonicUnleashed Chip]] subverts this multiple times at first, but finally manages a perfect landing just before the final level.
** It's also been a running gag since ''Sonic Adventure'' for Sonic to royally botch at least one of these landings.
* TieredByName: When Sonic's powered up by the Chaos Emeralds, he becomes ''Super Sonic" and turns yellow. There's other transformations from other sources as well, but this is the most famous.
* TimedMission: In the Genesis, Master System and Game Gear games, you lose one life if the timer hits 10 minutes. Later games do away with this restriction.
* TookALevelInBadass: Tails has a noticeable one between ''Sonic Adventure'' and ''[=SA2=]'', he builds himself a mech and is actually useful, and is somewhat able to think for himself.
** Eggman also takes a massive level in badass between the same two games. He goes from letting his [[SealedEvilInACan Cha]][[ExactlyWhatItSaysontheTin os]] do most of his fighting for him, and trying to conquer only Station Square to trying to take over the world with a KillSat. He actually gets his hands dirty in ''[=SA2=]'' (on screen at least) and almost manages to successfully kill Sonic.
** Lampshaded by Sonic, "You've turned into a big time villain, doctor!"
*** Only taken further in later games, where he ceases to be a patsy for more powerful villains and [[NotSoHarmlessVillain hides an even more dangerous intelect in that clownish exterior]]. In ''VideoGame/SonicUnleashed'' he tricks and depowers Super Sonic, while in ''VideoGame/SonicColors'' his plan for world domination expands to ''planetary systems''.
** Don't forget about Amy. See BadassNormal.
** Big the Cat in ''VideoGame/SonicHeroes'', similar to Amy he gains speed and powers to keep up with the others ([[EpicFlail his rod acts as a firey ball and chain!]]). For the first time ever we also see him [[BigBrotherInstinct kinda pissed off]].
** Team Chaotix undergoes a bit of this when they're re-introduced, too. Espio originally only had wall-clinging abilities, attacks using his tounge and his iconic spinning top spindash with no sign of espionage. In his return, all of those skills(Sans-tongue) come together into him being a badass ninja who's skills are surpassed [[LargeHam only by the volume at which he speaks.]] Charmy was previously one of the slowest characters in ''[[VideoGame/KnucklesChaotix Knuckles' Chaotix]]'' who's only use was flying around [[GameBreaker indefinitely]]. Upon his return, he's become a lot stronger, being able to carry and perform attacks using his two teamates(One of which is HUGE by Sonic standards) and attack more effectively using his stinger. He even delivers a NoHoldsBarredBeatdown to Robotnik in their ending. Vector was a tall and slinky crocodile who besides his Doughnut Spindash was pretty much a slightly weaker version of Knuckles. Upon his return, he's buffed up considerably, utilizes his crocodile jaws and fire breath to fight more effectively and has become an expert detective who's had a running tradition of accurately figuring out plot-crucial information before anyone else whenever given the chance.
* TornadoMove: Used by Sonic in some games. In ''VideoGame/SonicHeroes'', he and the other Speed characters can even whip up a tornado by rapidly moving in a circle.
* TrademarkFavoriteFood: Chili dogs, for Sonic himself.
* TreasureIsBiggerInFiction: Most notably, the Rings, Chaos Emeralds and the Master Emerald.
* UnderwaterRuins: One level in almost every game is set amidst underwater ruins.
* UnreliableCanon: In the early days, the in-game stories are simple {{Excuse Plot}}s about Dr. Eggman trying to rule the world through robots, with Sonic stopping him. Creator/{{SEGA}} encouraged production of alternate storytelling media, resulting in [[WesternAnimation/SonicSatAM at]] [[WesternAnimation/AdventuresOfSonicTheHedgehog least]] [[ComicBook/ArchieComicsSonicTheHedgehog six]] [[ComicBook/SonicTheComic groups]] [[Anime/SonicTheHedgehogTheMovie of]] [[Anime/SonicX people]] working independently on their own interpretation of the franchise, each with their own continuity totally separated from the video games. With the exception of ''Sonic X'', which came later, most kids in the 90s accepted at least one of these adaptations as canon with the video games, a precursor of the franchise's infamous BrokenBase today.
* UnwillingRoboticisation: Eggman's modus operandi in some games, specially the early ones.
* VideoGameFlight: Tails' tails come in handy. Err, tail-y.
* VideoGameLives
* VideoGameLongRunners: We are talking about a franchise that has run for 25 years, has dozens of games under it's belt (not counting how many ports and re-releases there are) has made [[http://sonic.wikia.com/wiki/List_of_cameos_and_references hundreds of cameos]] in other games, has starred in an absolutely monstrous amount of tie-in comics and merchandise, ''five'' different cartoon series and an anime movie, [[AdvertisedExtra made a top billed cameo appearance]] in a [[Disney/WreckItRalph Disney movie]], and has sold over 85 million games worldwide. And from the looks of things, he ain't going nowhere anytime soon.
* VideoGameSettings: The series has always shamelessly used every standard platform level style.
** A few settings are notably common in this series, even when compared to other such settings and other such shameless users of them: TempleOfDoom, PinballZone, and EternalEngine. Most games in the series will have all three of these, and it's hard to find any that don't have at least one of them. These are so common in this series that one game often has multiple variations of one of the types, e.g. [[LethalLavaLand Marble]] [[TempleOfDoom Zone]] and [[UnderTheSea Labyrinth]] [[TempleOfDoom Zone]] in ''VideoGame/SonicTheHedgehog1 (16-bit)'' or [[EternalEngine Gene Gadget Zone and Panic Puppet Zone]] in ''VideoGame/Sonic3DFlickiesIsland''. However, outside of ''Sonic Spinball'' there's still usually only one non-BonusStage instance of PinballZone.
* VillainDecay:
** Dr. Ivo "Eggman" Robotnik went through this starting with ''VideoGame/SonicAdventure'', which is when he started to get into his habit of releasing [[SealedEvilInACan sealed evil in cans]] and constantly [[AesopAmnesia failing to learn]] that EvilIsNotAToy. In nearly every game since ''VideoGame/SonicAdventure'', he started to be constantly upstaged by the game's BigBad while he is forced to help the heroes defeat him. ''VideoGame/SonicColors'' managed to get him back into the spotlight by having him refrain from trying to unseal an evil and made him go back to using his MechaMooks to destroy Sonic [[spoiler:and attempting to mind-control the entire Earth]].
** ''VideoGame/SonicGenerations'' plays with this: At first, the BigBad just seems to be a pretty generic EldritchAbomination, and Eggman's role is reduced to being a mere victim. [[spoiler: But in the end, it turns out the Time Eater was really a robot piloted by the Eggmen all along. Yes, Eggmen, [[MyFutureSelfAndMe plural.]]]] In a similar way, ''VideoGame/SonicLostWorld'' has Eggman forming an EnemyMine with Sonic after the group of demons that he had tried to control, the Deadly Six, [[EvilIsNotAToy betrayed him]]. [[spoiler:However, he was just using Sonic to defeat the Deadly Six, and once they're out of the way, he tries to take over the world with a super-charged mech, [[HijackedByGanon leaving him as the final boss]].]]
* VillainOfTheWeek: There have been several games where a new villain shows up to cause trouble instead of Dr. Eggman;
** Witchcart from ''VideoGame/TailsSkypatrol'', an evil witch who rides a minecart and is trying to conquer an island with the help of her henchmen.
** The Battle Kukku Army from ''VideoGame/TailsAdventure''.
** Void from ''VideoGame/SonicShuffle''.
** Black Doom from ''VideoGame/ShadowTheHedgehog''.
** Mephiles the Dark and Iblis from ''VideoGame/SonicTheHedgehog2006''.
** Imperator Ix from ''VideoGame/SonicChronicles''.
** Erazor Djinn from ''VideoGame/SonicAndTheSecretRings''.
** [[spoiler: Merlina]] from ''VideoGame/SonicAndTheBlackKnight''.
** Dark Gaia from ''VideoGame/SonicUnleashed''.
* VillainBeatingArtifact: The games have traditionally ended with Sonic (and sometimes whatever ally he has at the time) using the [[BonusStageCollectables Chaos Emeralds]] to go [[SuperMode super]], since the FinalBoss would be too powerful otherwise, and much of the time, they're out in space or otherwise flying, which Sonic can't do on his own. [[spoiler:Though, he does later prove he can take down Chaos, the former FinalBoss of ''VideoGame/SonicAdventure'', in ''VideoGame/SonicGenerations'' without the Chaos Emeralds, or at least he has [[TookALevelInBadass grown much in strength]] since then.]]
* VolumetricMouth: Die by drowning in the 2D games and Sonic does this.
* WalkOnWater: Many, including "Tails" and Knuckles, of the running on water variety. This is also to avoid drowning in water in the latest 3D Sonic games. In fact, in ''VideoGame/SonicGenerations'', Modern Sonic can boost underwater in order to get to the surface during Chemical Plant.
* WaterfallIntoTheAbyss: Angel Island.
* WaveMotionGun: The ARK's Eclipse Cannon in ''Sonic Adventure 2'' and ''VideoGame/ShadowTheHedgehog'', the Chaos Energy Cannon in ''VideoGame/SonicUnleashed'', the Death Egg in ''[[VideoGame/Sonic3AndKnuckles Sonic 3 & Knuckles]]''.
* WheelOFeet: The series staple of pretty much all characters who could actually run, though Shadow is a subversion with his "air skates", and Tails with his... tails. While the 2D games showed this whenever Sonic or Knuckles reached top speed, The 3D games brought about a 'motion blur' when they reached top speed (indicated by their hands flowing freely behind their backs). Since the 3D games primarily place the camera behind the character, however, it's hard to notice the effects of top speed.
* WhenAllElseFailsGoRight: In his first three games, Sonic is ''always'' travelling from left to right across the various zones; it's understood that, even in the more maze-like sections, the intention is to go to the right.
** The ''only'' exception in the original three (and a half) games is the final Death Egg zone, where the intention is still ''mostly'' to go to the right, but much more important than that is going up.
** There are many examples in ''Sonic the Hedgehog 2'' where you go up or left. Particular examples are Chemical Plant Zone and Mystic Cave Zone, which involve you having to go up, down, left and right several times to reach the end.
** There are several times when he is travelling left in ''Sonic 3 & Knuckles''.
** The UsefulNotes/SegaMasterSystem / GameGear games were not very different. Only two levels in that ''[[VideoGame/SonicTheHedgehog1 Sonic 1]]'' involve climbing and ''SonicChaos'' features one special stage where the [[PlotCoupon Chaos Emerald]] is above you.
*** The GameGear version of ''Sonic 2'', however, had you end one stage by going left.
* WordSaladTitle: Some of the zone names fit this, notably [[VideoGame/SonicTheHedgehog 1 Scrap Brain Zone]], [[VideoGame/SonicTheHedgehogChaos Sleeping Egg Zone]] and [[VideoGame/Sonic3DFlickiesIsland Panic Puppet Zone]].
* WhiteGloves: Again, pretty much all the characters, even some of the humans.
* WorldOfHam: Several characters in this series have very boisterous personalities. Even the more serious ones such as Shadow or Blaze are hammy at times.
* XtremeKoolLetterz: Some of the album titles use the word 'Trax' or 'Soundtrax.'
** The Chaotix.
[[/folder]]

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->''"[[VideoGame/SonicJam And SONIC continues to spin towards the future. Nothing will stop him!]]"''