* AccidentalInnuendo: Bunnie's infamous "Nasty as a one-eyed snake, sugah." line.
** Also, when Antoine [[{{Malaproper}} accidentally calls]] [[GettingCrapPastTheRadar fertilizer 'fraternizer']]
** The "funny kiss."
*** Parodied mercilessly in SonicShorts. "That wasn't funny at all!"
* {{Anvilicious}}: Averted. The Going Green message is very subtle.
* AwesomeEgo: Sonic.
* BaseBreaker: Much like almost every other interpretation of her, Sally divides the fanbase of the show completely in half. Her [[SpotlightStealingSquad upgraded role]] in the Second Season didn't help much.
* BetterThanCanon: A lot of fans consider the show's DarkerAndEdgier elements a lot more successful than Sega's attempts from the [[VideoGame/SonicAdventure late 90's]] to [[VideoGame/SonicTheHedgehog2006 mid 2000's]].
* CanonSue: A common complaint concerning Sally. She existed largely as TheStraightMan to the main character, and to prove how his trademark "like the wind" ethic was in fact reckless and incompetent compared to her more cautious, meticulous approach. The fact she gradually absorbed spotlight from other characters and thus became the most effective Freedom Fighter didn't really help in this regard.
* CompleteMonster: [[MorallyAmbiguousDoctorate Dr. Robotnik]], unlike the AffablyEvil version of him you'd see in other Sonic cartoons (or the games themselves), is [[DarkerAndEdgier much less pleasant]]. He is willing to deprive innocent creatures of their free will to get them to work for him, he is willing to turn formerly beautiful communities into severely polluted wastelands, and he doesn't show any remorse for any of his actions. He turns people into his robotic slaves if they don't obey him, which are [[AndIMustScream quite aware of what's happening to them]], and morally objecting to that which their robot bodies are forcing them to do. There are episodes in which some robots are carrying on secret conversations with their loved ones, from before roboticization, only to double over in apparent pain before proceeding to attack said loved ones because of the control Robotnik has over them through said robotic slavery. [[YouHaveOutlivedYourUsefulness He even turns the ones who do obey him into robotic slaves]].
* CreatorsPet: Both Dulcy and Sally were stated to be favorites of Ben Hurst, main writer for most of the second season. They also have a rather [[BaseBreaker "conflicted"]] reception with the fanbase to say the least.
* CultClassic
* DesignatedProtagonistSyndrome: Sonic, though not unpopular in the show per se, gets occasional critism from this. While a fairly effective hero, Sonic is by far the most dysfunctional and arrogant of the Freedom Fighters (StrawLoser Antoine not withstanding), frequently endangering the team due to his cockiness. Many also complain that the goofy Japan-based Sonic seems misplaced in the Americanized dystopian setup, and that the show would have worked as effectively with another Freedom Fighter as the lead rather than trying to tie in to the games series.
* DesignatedVillain: What kind of bad things did Naugus actually do? He didn't do anything seriously bad in the series. Sure, he kidnaps Sally and Bunnie so he could lure Sonic into the Void and then tricks him to get him out of the Void, but wouldn't most people do it if they were trapped in a wasteland for years and then saw the opportunity to get out? He did allow Sonic to take them back after he was out of the Void. And the only one whose life he wants to make difficult is Dr. Robotnik, the BigBad. The only reason we saw him as a villain was because of WordOfGod. Granted, he was supposed to become the next big bad in season 3 but that idea was screwed.
** His goal to escape were sympathetic but [[KnightTemplar his methods of escape were somewhat skewed]], deceiving the Freedom Fighters by posing as the King, and routinely encasing any one in frozen crystal that becomes a slight annoyance. While just deciding to ditch him and leave him in the Void after explaining his motives may have been a bit callous it may have been slightly justified given he had shown how potentially unstable he was in luring them unwillingly into the Void. As the third season also suggested, his ambitions outside revenge on Robotnik were also yet to be revealed.
*** It is understandable for him to be how he was. He was trapped in the Void for over 10 years, with only King Maximillian in charge. Plus the aforementioned betrayal by Robotnik. After all that time, it's no wonder he's callous.
*** It should be noted that the comics adapted from the series very much avert this. [[spoiler: Not only does Naugus fully deserve the title of villain, he crosses the MoralEventHorizon many times and is easily the biggest CompleteMonster in the series.]]
* DudeNotFunny: Some of Sonic's bullying towards Antoine can border into this. While it's understandable that someone like Antoine could get on people's nerves, Sonic treatment towards him can be just plain disgusting at times. Sonic sometimes didn't even have a reason to mess with Antoine (or it was for a rather petty reason); he just did it because he felt like it. The show tries to "justify" it by making Antoine come off as obnoxious or a jerk, but Sonic being a jerk back doesn't really make him any better. It makes him just as bad. Someone's being obnoxious? [[FamilyUnfriendlyAesop Just be a jerk back. That will teach him.]] [[SarcasmMode After all, just trying to peacefully talk it out and reason with that person won't help.]]
** One can argue Sonic earnestly refusing to save Antoine from Robotnik in "Hooked On Sonics" (in other words, hating Ant enough to want him to face potential torture and UnwillingRoboticisation) was this to the point of bordering an OutOfCharacterMoment (he implied it a couple of other occasions in the series, but in a far more playful and insincere tone to make it fair game).
* EnsembleDarkhorse: [[ActionGirl Bunnie]] [[HollywoodCyborg Rabbot]], which is why so many fans were understandibly upset when she was DemotedToExtra in Season Two.
* EthnicScrappy: This is one of the reasons why Antoine gets a lot of hate. The character's entire concept is that he is a [[CheeseEatingSurrenderMonkeys French guy who is useless in any action-related situation]]. He also gets flak for [[FrenchJerk being rude to Sonic]], even though [[NotSoDifferent Sonic is more or less equally rude to him]]. Even [[TookALevelInBadass taking a level in badass]] in the comics didn't stop some of the hate since many felt it stripped him of any defining characteristics and reduced him to a GenericGuy with a French accent.
* FridgeHorror: Dulcy's non-sequiturs about her mom become tragic when you learn she's nearly the LastOfHerKind.
* HilariousInHindsight: The plot of "Sonic Past Cool" has the Freedom Fighters rescue dinosaurs from Robotnik, one of whom makes friends with Tails via a translator. [[SonicColors Seventeen years later...]]
* HypeBacklash: Many fans of the current game series become irritated by the mentioning of the show, due to many fans' tendency to boast it's story and characters as superior to the SEGA canon. The fact that the show ''would'' have been made part of the official canon at one point doesn't help at all.
* InNameOnly: Sonic, Tails, Robotnik, Buzzbombers, Rings, and the basic, general story concept are the only things this series has in common with the games after ''[[VideoGame/SonicTheHedgehog Sonic 1.]]''
* MagnificentBastard: Robotnik shows signs of this, from his [[ManipulativeBastard manipulation of Sonic's egotism]] in "Sonic Racer" (''"on with the race, and may my best... MACHINE... win."'') to his ability (at least in "Sonic and Sally") to [[XanatosSpeedChess out-xanatos most of the freedom fighters]]...
-->'''Sonic''': ... except Tails.
* NightmareFuel:
-->'''Robotnik:''' Snively. What color is my heart?
-->''(Robotnik opens his putrid, rotting mouth wide enough to fit Snively's entire head in for Snively to look down his throat)''
-->'''Snively''' ''(terrified)'': I... I don't see a heart, sir.
-->'''Robotnik:''' Eggs-actly.
** The entire concept of roboticisation in the show. See "Sonic's Nightmare" for the terrifying details.
** The robot double from "Sonic and Sally" could very well have been a ''roboticized Mobian''.
** The glowing red eyes of Naugus against a black background in the finale.
* TheScrappy: Out of the main cast, Dulcy and Antoine are the least liked characters. Say what you want about Sally, but she still has a good amount of fans. Many felt that Dulcy was a pointless addition to the cast, especially since she appeared out of nowhere in the second season and the writers [[RememberTheNewGuy want you to pretend that she there since the beginning of the show]]. Also, many found her klutzy behavior to be more annoying than funny. Antoine gets a lot of flak for [[TheLoad not really doing anything useful]]. His cowardly personality tends to annoy viewers more than amuse them, especially since he tend to be a DirtyCoward at times. If he was more of a LovableCoward like Chuckie from ''Rugrats'' he probably would have been more liked. It also doesn't help that he really doesn't have any real redeeming traits (outside of a few JerkWithAHeartOfGold moments). Given that he is the StrawLoser of the group and Sonic doesn't like him, it could be intentional.
* SeasonalRot: [[ZigzaggedTrope Zigzagged]]. Season 2 is commended for its more developed continuity-based plot, but has multiple story criticisms compared to season 1, often concerning both Sonic and Robotnik's increased incompetence, [[DenserAndWackier overabundance of cheesy comic relief]] and the [[RememberTheNewGuy inexplicable introduction of]] [[TheScrappy Dulcy The Dragon]]. Also season 2 was written near entirely by Ben Hurst, making for a more consistent dynamic, albeit to the point of being streamlined greatly, with Hurst's preferred [[SpotlightStealingSquad characters]] and [[{{Flanderization}} enterpretations]] taking over (eg. Sally and Antoine were prominent in every episode, and were simplified to their [[PositiveDiscrimination positive]] and [[StrawLoser negative]] traits respectively, while fan favorites such as Rotor and Bunnie were DemotedToExtra).
* ShipTease: Bunnie pinching Antoine's cheek in "Sonic Racer." Made HilariousInHindsight by them becoming an OfficialCouple (and marrying) in the Archie comic.
* SoBadItsGood: The German version of the theme song.
* SuspiciouslySimilarSong: The orchestral background music [[Film/BackToTheFuture certainly sounds familiar]]... This extends even beyond the show's orchestral theme tune, to the point where the entire score is essentially one big riff on Alan Silvestri's style, complete with harmonies and dissonances based on octatonic scale patterns.
** Robotnik's theme also sounds a little similar to the {{Scarface}} theme.
* TakeThatScrappy: Sonic lampshades Antoine's obnoxiousness and uselessness quite often.
* TearJerker: Any time Uncle Chuck shows up, expect it to all end in tears.
** The scene when Sonic is crying after having to leave his uncle behind, especially after seeing him for the first time in years.
** "Blast To The Past part 2" has several, back to back.
** Bunnie reverting back to her half-metal body after what turned out to be a temporary de-robotization. She may be CursedWithAwesome, but the palpable pain and sorrow she lets out when she breaks down after changing back, you would have to be completely soulless not to feel.
* TheyWastedAPerfectlyGoodCharacter: Bunnie Rabbot made interesting use of the show's robotocization concept and had kickass cyborg powers to boot. However she had a supporting role in the majority of the first season and was DemotedToExtra in the second, arguably getting the least amount of development time out of the rest of the Freedom Fighters (Rotor and Tails were also heavily OutOfFocus for most of the show's later run). The comics adapted from the show utilize her a bit more, but still play her as one of the more minor leads.
** Also Tails, who according to [[WordOfGod Ben Hurst]] would have got a lot more screen time in Season 3 if it was finished.
* UnfortunateImplications: Part of the premise of the "Sonic and Sally" episode appears to be AdultsAreUseless at its worst.
* VillainDecay: Robotnik debuted as a DangerouslyGenreSavvy EvilOverlord with a deathly serious attitude in stark contrast to his LaughablyEvil persona in most other enterpretations. In the second season, while still somewhat fearsome, Robotnik gains more buffoonish qualities and also falls for BondVillainStupidity on several occasions due to his obsession with destroying Sonic.
* WhatDoYouMeanItsForKids: How some respond to this. [[RidiculouslyCuteCritter Cute animal]] [[ChildSoldier soldiers]] fighting a war to [[LaResistance de-throne]] a [[MagnificentBastard depraved]] [[DangerouslyGenreSavvy genius]] who is resposible for [[OmnicidalManiac genocide]] of [[AfterTheEnd Apocalyptic porportions.]] And all of the [[DoubleStandard girls]] [[{{ParentService}} have boobs]]. Kids indeed!
** And then there's the kiss between Sonic and Sally in "Hooked on Sonics". The ''second'' one, not the peck on the cheek with the faux PostKissCatatonia. Ho boy...
* TheWoobie: Most characters had their moments of this. Sonic and Sally sure did, but Bunnie is the biggest contender by a long shot given her back story and more so in the comics.
** JerkassWoobie: Antoine is a self centered Dirty Coward, but his constant failed attempts at respect and heroism (and [[SmugSuper Sonic's]] [[JerkJock relentless jokes at his expense]]) make you feel some sympathy for him. After all, [[ThisLoserIsYou not everyone can be heroic]].
*** Snively for the most part is suggested to be as [[LackOfEmpathy remorseless]] and ruthless as Robotnik, still you have to pity the overwhelming amount of abuse he has supposedly suffered from his uncle (who is embarrassed to even acknowledge their relation) for ''over a decade''. The fact the Freedom Fighters often trigger Robotnik's [[YouHaveFailedMe wrath onto him]] (at one point Sonic seemed to acknowledge and laugh about it) probably gives a valid excuse as to why he isn't sympathetic towards them.