Line #65 WesternAnimation/SonicUnderground


1	%%
2	%% Image selected per Image Pickin' thread: https://tvtropes.org/pmwiki/posts.php?discussion=16796617080.23941700
3	%% Please don't change or remove without starting a new thread.
4	%%
5	[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/sonic_underground_sonic_le_rebelle_serie_de_tv_365945009_large.jpg]]
6	%%
7
8	->''Triplets born, the throne awaits\
9	A seer warns of a deadly fate\
10	Give up your children, separate\
11	Bide your time, lie in wait\
12	Sonic Underground! Sonic Underground!\
13	They made a vow, their mother will be found!''
14
15	->''The children grow, learn what's right\
16	Leaders of the freedom fight\
17	They seek their mother, she knows they do\
18	Is it time? If she only knew\
19	Will the prophecy come true?''
20
21	->''Sonic Underground! Sonic Underground!''\
22	(I long for my children, but I have to wait…)\
23	(To act too soon could seal their fate…)\
24	''They made a vow, their mother will be found!\
25	Sonic Underground!''
26	-->--'''The ThemeTune'''
27
28	''Sonic Underground'' is the third ''Franchise/{{Sonic\|TheHedgehog}}'' AnimatedAdaptation made. It was produced by Creator/DICEntertainment.
29
30	Sonic and his two siblings, Sonia and Manic, are left by Queen Aleena as {{Doorstop Bab\|y}}ies to families, each of a different class. Eventually, they meet together when grown up, and guided by the Oracle of Delphius, they set out to thwart Robotnik, find their mother, and form the Council of Four to end his reign. Robotnik also banned all music, and our three protagonists were {{Musical Assassin}}s with ThePowerOfRock. This series is also the first western ''Sonic'' cartoon to introduce Knuckles- though, surprisingly, Tails is a no show.
31
32	Syndicated in the United States in the Fall of 1998, as part of the Creator/{{BKN}} children's block, with repeats continuing until the end of Summer 2000. BKN also syndicated and co-produced earlier [=DiC=] ''Sonic'' series ''WesternAnimation/AdventuresOfSonicTheHedgehog'', when it was known as Bohbot Entertainment (unlike ''Adventures'', however, Bohbot only distributed ''Underground''). Nationally, the show aired (along with other BKN programming) on Creator/KidsWB via Creator/TheWB[='=]s 100+ Station Group, airing only in markets that were too small for a WB or independent affiliate to operate.
33
34	Not to be confused with the [[WesternAnimation/SonicTheHedgehogSatAM three]] [[WesternAnimation/AdventuresOfSonicTheHedgehog other]] [[WesternAnimation/SonicBoom western]] [[WesternAnimation animated]] series based on Sonic the Hedgehog, the {{anime}} series ''Anime/SonicX,'' the {{OVA}} ''Anime/SonicTheHedgehogTheMovie'', the [[Film/SonicTheHedgehog2020 film adaptation]] or the game that helped to [[CutShort kill it off]] that same year, ''VideoGame/SonicAdventure''.
35
36	After ten years of being CutShort, it seemed that [[http://www.bumbleking.com/forum/viewtopic.php?f=4&t=6519&start=30 the story would conclude]] in the [[ComicBook/SonicTheHedgehogArchieComics Archie's Sonic Universe comic]]. [[https://twitter.com/IanFlynnBKC/status/510281489292877824 Unfortunately, the project was cancelled.]] The Fan WebComic ''Webcomic/ArchieSonicOnline'' has, however, decided to give [[http://archiesoniconline.com/?comic=sonic-universe-online-50-cover their own spin on this]]. However, as it is fanmade, there ''is'' no real canonical ending.
37	----
38	!!''Sonic Underground'' provides examples of:
39
40	* EightiesHair: Sonia and Manic have wild hairstyles reminiscent of the 1980s. Aleena does as well.
41	* AbsurdlySpaciousSewer: The sewers below Mobotropolis and other cities on Mobius are this. Some are made of metal in a sci-fi style, while others are made of stone.
42	* ActionGirl: Sonia fights using her strength as well as lasers and her motorcycle.
43	* ActionHoggingOpening: The opening theme shows the hedgehogs' adventures while explaining the premise.
44	* AdaptedOut: The series had relatively few main characters from the games at all, with only Sonic, Robotnik, and a few appearances by Knuckles. Most notably, this is one of the few pieces of ''Sonic'' media where Tails is completely absent.
45	* TheAllegedCar: Sonic, Sonia, and Manic's RV van. The thing is pretty grody-looking on the outside and looks as though it could fall apart at any time. But it manages to lug around the hedgehogs and their stuff pretty well. One of the very few times it actually breaks down, it's because Sonic tried to cook a chili dog by leaving it on the RV's engine.
46	* AnimationBump: Occasionally the animation becomes very fluid, most prevalent in the opening.
47	* ArrangedMarriage: Sonia to Bartleby, and Queen Aleena to Robotnik in one episode.
48	* ArtEvolution: Sonic looks closer to his game counterpart than the previous two [=DiC=] cartoons (he has extra quills on his back and five fingers), and the animation is done with digital ink and paint rather than cels. [[OffModel That doesn't make the animation any better, though]].
49	* TheArtfulDodger: Manic is an expert thief and handy with picking locks.
50	* ArtisticLicensePaleontology: Knuckles's pet Chomps is supposed to be a carnivorous dinosaur, but is a quadruped instead of a biped.
51	* AutobotsRockOut: Sonic, Sonia, and Manic jam out during their songs, and music itself is used as a weapon at times.
52	* BeautyIsNeverTarnished:
53	** In "The Big Melt", despite being triplets, Sonia's bare feet are much daintier than Sonic and Manic's.
54	** Averted in "The Price of Freedom" and "Haircraft in Space," where Sonia getting her hair and outfit completely wrecked kickstarts the plot.
55	* BecauseDestinySaysSo: Aleena and her children are destined to reunite as the Council of Four, but until then she separates from them, as appearing too soon would undermine the prophecy and doom their efforts.
56	* BigFancyHouse:
57	** Sonia used to live in one before Robotnik roboticized her foster parents.
58	** Sonia's friend Mindy lives in one at the start of "The Price of Freedom."
59	* BlueBlood: The various aristocrats are generally haughty and content to live lives of luxury.
60	* BondVillainStupidity: On more than one occasion, Robotnik has one or more of the triplets at his mercy, but decides to do something other than just roboticize them immediately.
61	** In "Sonia's Choice", he has Sonic and Manic unconscious and trapped in separate roboticizers, but instead of just pulling the lever, he gloats to Sonia about the situation and gives her a SadisticChoice of which sibling to save. He's seemingly hoping to capture Sonia when she arrives at either location, and thus roboticize all three at once, but instead he provides an opening for Sonia (with some help from the local resistance [[spoiler:[[BigDamnHeroes and Queen Aleena]]]]) to rescue both siblings. Having had a golden chance to eliminate two of the triplets in one fell swoop, Robotnik gambled for all three and ended up with none.
62	** In "Sleepers", Robotnik lures Sonic into a trap inside his castle, and the hedgehog is sent falling through a trapdoor into... a roboticizer? An acid vat? A SealedRoomInTheMiddleOfNowhere? Nope... a room with a single slow-firing vaporizer ray, and walls ''that aren't vaporizer-proof''. Sonic just dodges the ray a few times and the wall behind him disintegrates, allowing him to escape.
63	* BreadAndCircuses: The series shows [[CutLexLuthorACheck how Robotnik can afford to stay in power]]. The upper-class aristocrats can either provide his funding, or lose their land and privileges, and risk being roboticized.
64	* BrokenAesop: The 21st episode involves a seller with one of the Queen's gems and willing to sell it at a high price. The trio doesn't have the money and Manic ruefully recommends [[StickyFingers acquiring it]]. Sonia and Sonic are disgusted with Manic's thieving skills and shoot it down, even though they have stolen things before and Manic has taken things that saved their lives. Later, Sonic's ingenious way of getting Sleet and Dingo out of their ship is to flood it with gallons upon gallons of unpaid-for olive oil.
65	* BumblingHenchmenDuo: Sleet and Dingo are Robotnik's main henchmen, and while Sleet is more competent than the DumbMuscle Dingo it's a rare day when they manage to accomplish something.
66	* ButtMonkey:
67	** Sonia at first. Her brothers frequently make fun of her for being spoiled.
68	** Dingo and Robotnik at times.
69	* CanonForeigner: Every single character, with the exceptions of Sonic, Robotnik, and Knuckles.
70	* CanonImmigrant: Knuckles's great grandfather, Athair, was originally a character from the Archie ''Sonic'' comics.
71	* CantKillYouStillNeedYou: During "Chaos Emerald Chaos", Robotnik is about to roboticize Sleet for his attempted insurrection, but as soon as Sleet tells him, "I know where Dingo is!", Robotnik releases him. Finding and stopping Dingo, who has absorbed the broken Chaos Emerald and gone insane, is far more important at that moment.
72	* CaughtByArrogance: A villainous version in the episode "Winner Fakes All". Robotnik sets up a race to crown "the fastest being on Mobius", knowing that [[FastestThingAlive Sonic]] will be unable to resist such a challenge. Sure enough, Sonic signs up for the race, ignoring the protests of his siblings... [[SubvertedTrope then changes his mind and pulls out at the last minute]].
73	* CharacterCatchphrase: Much of Sonic's catchphrases from ''Adventures'' and ''[=SatAM=]'' were carried over, along with a few new ones, such as "Bummer mejores!".
74	* CharacterDevelopment: In the beginning, Sonia was pretty whiny, prone to complaining whenever her appearance was tarnished. Later in the series, she becomes more of a leader figure, and is easily the most focused of the siblings.
75	* ChattyHairdresser: The Do-Bot. Invoked as she was a spy for Robotnik: she would lure her customers into blabbing secrets, then record them on an internal tape recorder.
76	* ChromaticArrangement: Sonic is blue, Sonia is pink, and Manic is green.
77	** Sonic and Sonia are subversions of the trope because their roles and personalities are reversed. Sonic is blue but he’s the main character, and Sonia is the pink/red but serious and uptight one. Manic is the only one who plays the trope straight by being the green and laidback one.
78	* ColorCodedForYourConvenience: The lasers their instruments shot are color-coded.
79	* CreepyMonotone: ART, to a point. Also Manic when under Robotnik's control in "Bug!"
80	* CutShort: They made a vow their mother will be found, but she never was. The series ended early.
81	* DeadpanSnarker: Sleet tends to be pretty snarky at times, especially when he is with Dingo.
82	* DeusExMachina: Queen Aleena makes sporadic appearances to save her children at times.
83	* DishingOutDirt: Manic, who can cause earthquakes with his drumming.
84	* DisintegrationChamber: One episode has Robotnik dispense with his usual elaborate schemes and just drop Sonic through a trapdoor into one of these. Unfortunately, he didn't think to make the chamber walls disintegration-proof, so Sonic just dodges the beams until they destroy the wall behind him and allow him to escape.
85	* DisappearedDad: No mention has ever been made of Aleena's husband/the siblings' father, not even in the Mirror Universe.
86	* DissonantSerenity: Early in the series, there's a strange problem with the animation where the characters will be smiling, even when talking about something depressing or when something bad is happening. This was fixed as the series went on.
87	* TheDogBitesBack: Happens ''twice'' within the same three-part episode. After Robotnik builds a Chaos Emerald-powered flying fortress, Sleet and Dingo grow concerned that they've [[YouHaveOutlivedYourUsefulness outlived their usefulness]], so they steal the Emerald and escape. Then Dingo, clearly tired of being slapped around by Sleet, steals the Emerald from ''him''.
88	* {{Dogfaces}}: Many of the extras look like extraterrestrial versions of Disney-style dognoses.
89	* DoorstopBaby: Sonic and Sonia; Manic was stolen from his.
90	* DubNameChange: In the French dub, the following characters were given different names:
91	** Sleet became Louvois.
92	** Dingo became Dur-Dur ("Hard-Hard").
93	** Aleena became Éléonore.
94	** Bartleby became Barnabé.
95	** Knuckles became Castagne ("Brawl").
96	* DumbMuscle: Dingo is mainly used as muscle, as he's as dumb as a post.
97	* EasyAmnesia: Sonia loses her memory in "Who Do You Think You Are?" and regains it by the end.
98	* EpisodeTitleCard: With the group portrait above as a backdrop.
99	* EvilDebtCollector: Sleet and Dingo are this to both the aristocrats and the people of Mobodoon.
100	* EvilOverlord: Robotnik, naturally, although there is a lot that separates him from the Robotnik of ''[=SatAM=]''. ''[=SatAM=]'' Robotnik's end goal is to roboticize all sentient life in order to consolidate his control of the planet. ''Underground'' Robotnik also desires worldwide domination, but is willing to be more open to the various ways of achieving this, including shaking down the rich for resources and relying upon unroboticized help. Also, ''Underground'' Robotnik isn't keen on polluting environments unless it somehow serves his purposes, and leaves most people unroboticized, treating the procedure more as a punishment for crimes committed against his rule.
101	* ExpositoryThemeTune: The theme song describes the show's premise: three royal hedgehog siblings were abandoned by their mother because of a prophecy; years later, the siblings are freedom fighters that are searching for their mother.
102	* FailureIsTheOnlyOption:
103	** When Sleet and Dingo do their jobs of trying to capture Sonic, Sonia, and Manic, they fail. When they come up with plans that would mess up Robotnik, they still fail.
104	** Sonic, Sonia and Manic never succeed in reuniting with their mother.
105	* FamilyThemeNaming: Doubled-up with {{Punny Name}}s. Sonia's name alliterates with Sonic, while Manic's name rhymes.
106	* FatBastard: Sonic's corrupted self in "Six is a Crowd".[[spoiler:He has no queen, and even tries to throw one of his chegs in the dungeons.]]
107	* FeudalFuture: Robotnik basically extorts tribute from the aristocrats under threat of roboticization.
108	* ForgottenFallenFriend: The foster parents/educators of the hedgehogs were arrested and roboticized at the end of episode 1 and, with the exception of Lady Windemere, are never seen again.
109	* FourFingeredHands: Robotnik, for reasons unexplained, retains this from the previous shows, save for an [[OffModel error or two in the animation]]. Averted otherwise, with even Sonic gaining a fifth finger.
110	* FullyAbsorbedFinale: The series' story was meant to get a conclusion through the ''[[ComicBook/SonicTheHedgehogArchieComics Archie Sonic the Hedgehog]]'' comics, but it ended up being canceled.
111	* GossipyHens: Exploited by Robotnik, who built Do-Bot as a ManchurianAgent spy who would chat with her customers and unknowingly record their gossip.
112	* GroupHug: Seen a lot.
113	* GrowlingGut: Sonic's hungry stomach growls at the beginning of "Head Games", and when he grabs some chili dogs from a local vendor, he finds a coconut with a message scrawled on it that kicks off the plot of the episode.
114	* HalfwayPlotSwitch: Used, and nearly invoked, in "Wedding Bell Blues." Since Queen Aleena didn't show for her forced marriage to Robotnik, they'll instead crown Sonia queen in her stead.
115	* HeartIsAnAwesomePower: Manic's ability to pick locks has helped in terms of sneaking in and out of Robotnik's base.
116	* HoverBoard: Manic has a yellow one that he uses to get around. Sonic is also shown with one in a single episode.
117	* HulkSpeak: ART the robot talks like this, but in a strangely natural tone of voice, which is the complete opposite of the SWAT-bots.
118	* IdenticalGrandson: In "Mummy Dearest", the siblings find the tomb of a distant ancestor of theirs, who looks and acts just like Sonic.
119	* IdenticalStranger: In a parallel universe, the main cast have alignment-flipped doppelgangers.
120	* {{Idiosyncratic Wipe\|s}}: Only one. Sonic's guitar rotating toward and then away from the screen while an echoing chord plays.
121	* InNameOnly: The only things present from the the franchise games are Sonic, Robotnik, the Chaos Emeralds and a few appearances by Knuckles. Even by the standards of the animated adaptations, this was ''very'' different from the source material (with Sonic having two siblings whom he forms a band with and characters who don't even look like they're anthropomorphic animals). Some of the setting is inspired by ''Sonic [=SatAM=]'', however (such as the design of Robotropolis and Robotnik himself).
122	* InstrumentOfMurder: Sonic, Sonia, and Manic use their music as a weapon at times, as Sleet and Dingo can't stand it.
123	* JerkWithAHeartOfGold: Despite his wealthy lifestyle, cowardice, and the threats to his life should he turn his back on Robotnik, Bartleby has helped the hedgehogs at times. In return, they broke him out of prison near the end of the series.
124	* KangarooCourt: One episode sees Bartleby being put on trial for aiding the resistance, with Robotnik as the judge, Sleet as the prosecutor, and for his defense attorney? ''Dingo''. [[spoiler:Of course the whole thing was a ruse to lure Sonia out:]]
125	-->'''Dingo:''' Your honour, my client here is innocent... although he looks like a dirty traitor to me.\
126	'''Sonic:''' With a defense like Dingo, who needs a prosecutor?
127	* KleptomaniacHero: Manic. This is justified as he was raised by thieves and really doesn't know any better.
128	* LaserGuidedAmnesia: Happens to Sonia in "Who Do You Think You Are?".
129	* LeftHanging: DoubleSubverted. After initially ending without a conclusion, the series was meant to receive a conclusion in the ''Archie'' comics, but then ''that'' was left hanging too (and eventually cancelled).
130	* {{Leitmotif}}: Aleena's theme, an ethereal electric guitar riff.
131	* LighterAndSofter: Though not as light as ''Adventures'', it has a much lighter and more comedic tone than ''[=SatAM=]''. Being a musical helps.
132	* LightningBruiser: Sonic.
133	* LiteralSurveillanceBug: Manic uses one in "The Jewel in the Crown" to eavesdrop on Robotnik's conversation with Sleet and Dingo. It works up until Dingo sits on it.
134	* LoveTriangle: Started out with Bartleby and Cyrus competing for Sonia's affection, then became one between her, Cyrus and Knuckles.
135	* MadeOfExplodium: The SWAT-bots tend to explode whenever damaged.
136	* MadnessMantra:
137	-->'''Emerald-powered Dingo:''' CHAOS... I... WANT... CHAOS!
138	* MagicPants: In the episode "Sonic Tonic", when the side effect of the titular tonic sets in, Sonia and Manic's feet grow huge but their footwear just stretches to fit. When their feet later go back to normal, so does their footwear. This is averted with Sleet and Dingo, however.
139	* MaliciousMisnaming: Like ''WesternAnimation/SonicTheHedgehogSatAM'' and ''WesternAnimation/AdventuresOfSonicTheHedgehog'' before it, the show has Sonic constantly refer to Robotnik as "Robuttnik" or "Buttnik". The triplets occasionally get in on it as well.
140	-->'''ART:''' 'Buttnik?' Oh. [[DontExplainTheJoke Robotnik. Buttnik]]. [[CreepyMonotone Ha ha ha. That is funny.]]
141	* MamaBear: "Sonia's Choice" has Queen Aleena pull a BigDamnHeroes and shoot down some SWAT-bots to save Manic from being roboticized.
142	* MechanicalHorse: Two of them appear in the episode "Wedding Bell Blues". Sleet and Dingo ride on one, and a dummy of their mom made by the triplets sits on another. [[spoiler:Had the series continued, there could have been ''more'' of them.]]
143	* MeaningfulName: Sonia and Manic both make the word "Sonic" when "ia" and "ma" are removed from their respective names.
144	* MechaMooks: SWAT Bots, as in ''Sonic [=SatAM=]'', are Robotnik's primary antagonistic force.
145	* {{Mentor\|s}}: The Oracle of Delphius, who informs Sonic of the prophecy, obliquely helps him find his siblings, and then provides occasional help throughout the rest of the series.
146	* MindControlDevice: The darts in "Bug!", which turned whoever they hit into a Robotnik spy.
147	* MirrorUniverse: In "Six is a Crowd", the hedgehogs entered one where they were the tyrants and Robotnik was a Freedom Fighter. It ended with them [[HeelFaceTurn redeeming]] their evil counterparts. Strangely, there was no mirror Aleena or mirror version of their father.
148	* MissingMom: The overarching plot revolves around the search for a missing mom. Queen Aleena abandoned her children because of a prophecy that said the children would all die if she didn't. Years later, when her children are grown up, she's still in hiding. Aleena says as much in the theme song: "I long for my children, but I have to wait. To act too soon could seal their fate."
149	* TheMole: Cyrus in his debut episode.
150	* MrViceGuy: Manic can't seem to get out of his old habit of stealing.
151	* MusicalAssassin: All three of the hedgehogs. Sonic uses a guitar, Sonia uses a keyboard, and Manic plays the drums.
152	* MythArc: Later episodes had more of a StoryArc, with the hedgehogs meeting Knuckles and Cyrus, and Bartleby joining the side of good.
153	* MythologyGag:
154	** Sonic being in a rock band was a scrapped idea from when the very first ''Sonic'' game was in development.
155	** In the first episode, Uncle Chuck and Sonic are seen in the former's base from ''WesternAnimation/SonicTheHedgehogSatAM''. When Robotnik is taking over, a statue of King Acorn (also from ''[=SatAM=]'') is seen crumbling.
156	* NeverSayDie: Subverted in the second episode when the trio fail a training exercise:
157	-->'''Sonic:''' I got us killed.
158	* NiceJobBreakingItHero: A lot of trouble could have been avoided if the Oracle hadn't told Robotnik about their plan to overthrow him.
159	* NoEnding: The show was cancelled abruptly before an ending could be written; the final episode doesn't resolve anything. [[https://www.youtube.com/watch?v=cqegufDG4d4 According to Robby London]], [[EnforcedTrope this was done to avoid a]] PostScriptSeason, should the series have been picked up for another season. The planned comic conclusion was also shelved.
160	* NonIdleRich: The Duke of Argonia, who uses his wealthy lifestyle to aid poor Mobian kids.
161	* OncePerEpisode: Sonic and his siblings sing a song every episode.
162	* OneWingedAngel: A Chaos Emerald-powered Dingo turns into a giant, unstoppable blob who nearly destroys Mobius.
163	* PhotographicMemory: Sonia. [[LaserGuidedAmnesia Except for the one episode where she loses it]].
164	* ThePowerOfFriendship: This powers the hedgehogs' instruments.
165	* ThePowerOfRock: Quite literally, as the triplets' instruments double as laser weapons or, in Manic's case, earthquake generators.
166	* PrinceCharmingWannabe: Bartleby Mink, though he didn't start like it; at first Sonia reciprocated his affections to a degree.
167	* ProtestSong: The band has quite a few in their repertoire, such as "Justice Calling," "Learn to Overcome," and "The Sound of Freedom".
168	* RedemptionEqualsDeath: In "The ART of Destruction", the titular learning robot is converted to the Resistance via ThePowerOfRock. [[spoiler:At the climax of the episode, ART holds back a [[TheWallsAreClosingIn closing-wall trap]] long enough for the triplets to escape, and is crushed and killed]].
169	* RePower: Sonic's super-fast speed is complimented by ThePowerOfRock, allowing him to fire lasers.
170	-->'''Sonic''': And now, a word from my guitar. [''blasts the ceiling, causing a cave-in that halts his pursuers'']
171	* RewardedAsATraitorDeserves: In one episode, a black market dealer tries to extort money from the triplets in exchange for information they need. Sonic just spins him dizzy until he agrees to talk. After they leave, the furious dealer rats them out to Sleet, who tells him, "I'll make sure you get everything that's coming to you". The dealer assumes this means he'll be paid this time. [[UnwillingRoboticization He's wrong.]]
172	-->'''Sleet''': [''activating the roboticizer''] I said you'd get what's coming to you.
173	* RichSuitorPoorSuitor: Bartleby of the high class, haughty variety, and Cyrus, the street-smart resistance member. Sonia's also shown affection for Knuckles, who doesn't really fit into either category.
174	* RidiculouslyHumanRobots: While there are exceptions, such as Argus's roboticized form, most roboticized Mobians don't look much different from their regular selves. Some even look almost completely Mobian except for cybernetic eyes or limbs. Robotnik also created a lifelike hedgehog baby as part of a plan to invade Sanctuary.
175	* RoboticReveal: [[spoiler:Ifyoucan]] was roboticized, but retained his free will, similar to Uncle Chuck in [=SatAM=].
176	* RockTrio: The triplets, naturally, with Sonia playing keyboard instead of bass guitar.
177	* SadisticChoice: In the aptly-named "Sonia's Choice", Robotnik captures Sonic and Manic, positions them in roboticizers at either end of the city, and forces Sonia to choose which one to save. [[spoiler:She chooses to save both, though saving Manic requires [[BigDamnHeroes some assistance]] from Queen Aleena]].
178	* SatisfiedStreetRat: Manic.
179	* ScoobyDoobyDoors: {{Downplayed\|Trope}} when Sonic gets lost while navigating the Flying Fortress.
180	* ScienceIsBad: Surprisingly downplayed. In this show, unlike in ''WesternAnimation/SonicTheHedgehogSatAM'', Robotnik is much less of a polluting industrialist and mostly sees technology as a way to maintain his control over the planet. Therefore, there's much less of an incentive for him to pollute the entire planet purely for the sake of doing so. Granted, the places under his most secure control aren't paradise, but they're still livable, and it's heavily implied that the hedgehogs' secret home base is located in Robotnik's capital city. That, and Sonic and Company have used futuristic technologies (i.e. a RV van, a hover board, motorcycle, several other vehicles) constantly in their fight against Robotnik. Furthermore, there are several incredibly beautiful and highly futuristic cities on this version of Mobius.
181	* ScrewTheMoneyIHaveRules: A recurring theme is aristocrats giving up their wealth to help the hedgehogs, such as Mindy and [[spoiler:Bartleby]].
182	* SeriesGoal: Finding Queen Aleena and forming the Council of Four to overthrow Robotnik is the main goal for most of the series.[[spoiler:Due to the series' abrupt cancellation, this never happens, and the Oracle of Delphius himself disappears before the prophecy he made even ''gets'' fulfilled!]]
183	* {{Shapeshifting}}: Dingo can morph into just about anything with Sleet's morphing device.
184	* ShoutOut:
185	** Manic's hoverboard looks like a Federation Scoutship from the ''Series/StarTrekTheNextGeneration'' movies.
186	** The end of "Bartleby the Prisoner" is one to ''Film/{{Casablanca}}''.
187	* SiblingRivalry: This comes up sometimes with the triplets, usually between Sonic and Sonia.
188	* SiblingYinYang: Sonia is an upper-class, responsible girl who hates getting dirty. Manic, on the other hand, is a laid-back street rat who's lived in the sewers most of his life.
189	* SilenceYouFool: Arguably Robotnik's catchphrase in the show, usually used against Sleet and Dingo whenever they try to explain their latest failure or complication. Iy gets annoying really fast. An utterance of it almost becomes the TropeNamer in "The ART of Destruction", only replacing 'fool' with 'idiot'.
190	* SitOnTheCamera: Used in the episode "The Jewel in the Crown" when Dingo sits on Manic's remote controlled bug. "I think I sat on a bug."
191	* SlidingScaleOfAdaptationModification: The series is a Type 1 (InNameOnly) adaptation of the video games.
192	* TheSmartGuy: Cyrus is a street-smart resistance member.
193	* SpectacularSpinning: Sonia's Super Twirl is a spinning attack.
194	* TheStarscream: Sleet and Dingo try to be this when they snatch a Chaos Emerald from Robotnik. It doesn't quite work out.
195	* StatusQuoIsGod: Played straight with the main story, especially as there was no finale, but averted with Bartleby joining the Resistance and Cyrus and Trevor helping out at times.
196	* StickyFingers: Manic just can't stop himself from stealing at times.
197	* StickySituation: Played for drama in "New Echidna in Town" when Robothik uses glue to immobilize the hedgehogs in preparation to roboticize them, against Knuckles' wishes.
198	* SurferDude: Manic, complete with hoverboard.
199	* ThemeTwinNaming: Sonia and Sonic are the most obvious, but Manic and Sonic also count.
200	* ThereWasADoor: Sleet and Dingo have an exchange in episode 2:
201	-->'''Sleet:''' Go in and help the metalhead. Go!\
202	'''Dingo:''' Y-you mean through the door there?\
203	'''Sleet:''' [[DeadpanSnarker No, through the wall, genius.]]\
204	'''Dingo:''' [[SarcasmBlind Okey-dokey!]] ''[charges through the wall]''
205	* TotallyRadical: Sonic, as in [[WesternAnimation/AdventuresOfSonicTheHedgehog the previous]] [[WesternAnimation/SonicTheHedgehogSatAM two shows]], but Manic also gets in on the act, using nonsensical adjectives like "crashin'" and "rippin'" as well as "bogus".
206	* TrademarkFavoriteFood: Sonic loves chili dogs, as does his mirror universe counterpart.
207	* TransformationRay: Sleet has one for use on Dingo.
208	* TrapIsTheOnlyOption:
209	** In "Wedding Bell Blues," the hedgehogs know Robotnik's wedding to Queen Aleena is a trap, but fall into it anyway on the off-chance Aleena is actually there.
210	** In another episode, in a call back to a ''[=SatAM=]'' plot, Robotnik challenges Sonic to a race. Sonia and Manic, figuring Sonic couldn't resist, show up to try and rescue him... except he knew it was a trap and ''didn't'' show, and ''they'' end up having to be rescued instead.
211	* TricksterMentor: The Oracle of Delphius speaks in riddles more often than not, transports the hedgehogs into a MirrorUniverse where they're the bad guys to teach them a lesson, and when called out on it, responds with a gem.
212	-->'''Sonic:''' Don't you ever just give a straight answer?\
213	'''Oracle:''' What do you think?
214	* UnwillingRoboticization: Similar to how it works in ''WesternAnimation/SonicTheHedgehogSatAM'', with one major difference being that most of the time, beings that undergo roboticization come out looking like cyborgs and not full-fledged robots. However, the minds of roboticized beings are still enslaved to Robotnik and this control can only be broken temporarily. Robotnik used the roboticizer much more sparingly in this show, treating it more as a punishment for rebellion or failing to carry out his orders, rather than an umbrella treatment for all living creatures. Most people are not roboticized and Robotnik employs two unroboticized bounty hunters who are threatened several times with the treatment but are never actually subjected to it.
215	* UpperClassTwit: Bartleby has a lavish lifestyle, is very haughty, and only reluctantly helps the heroes, siding with Robotnik on more than one occasion out of fear.
216	* VileVillainLaughableLackey: Dingo is DumbMuscle and less intelligent than his partner mercenary Sleet.
217	* WalkThisWay: [[LampshadeHanging Lampshaded]] in "A Hedgehog's Home is Her Castle":
218	-->'''Sonic:''' I'm waiting for you to say 'walk this way'. ''[does a SillyWalk]''
219	* WeddingSmashers: The hedgehogs try and crash Queen Aleena's forced marriage to Robotnik, except there was never one to begin with as she didn't show.
220	* WhatKindOfLamePowerIsHeartAnyway: Sonic has SuperSpeed. Sonia has SuperStrength. Manic can pick locks.
221	* WhatMeasureIsANonHuman: The show is pretty NeverSayDie usually, roboticizing characters instead of killing them. Robots who side with the good guys are sometimes destroyed, including Hip, the fake baby hedgehog who had developed a fondness for Manic, and ART, who saves Manic's life. ART is at least mourned, but when Hip is destroyed everyone is merely mad at Robotnik for tricking them. Then again, Hip never had a chance to express its feelings, being a baby.
222	* WhyDidItHaveToBeSnakes: Sonic's fear of water comes into play in a few episodes.
223	-->'''Sonic:''' Why is it always water?
224	* YouAreNotReady: According to the prophecy, Queen Aleena can't reunite with her children until the right time comes.
225	* YouHaveFailedMe: Subverted in the second episode. Robotnik almost roboticizes Sleet and Dingo after their initial failure to capture the hedgehogs, but instead decides to give them "one last chance".
226	* YourDaysAreNumbered: The Oracle warns Robotnik that his reign of terror will end once Aleena reunites with her children.

Context WesternAnimation / SonicUnderground