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''Sonic Chronicles: The Dark Brotherhood'' (2008) is a RPG SpinOff from the ''SonicTheHedgehog franchise'', developed by none other than {{BioWare}}. Unlike many other spin-off titles in the ''Sonic'' (which typically receive mixed to negative responses), ''Chronicles'' was greeted with very positive reviews, [[CriticalDissonance at least official ones]].

A while after Eggman's latest defeat, the doctor is still missing in action, and is presumed dead. The peace doesn't last very long, though, as Sonic receives a call from Tails explaining that Knuckles has been kidnapped by a mysterious new group named the Marauders, who have also stolen all the Chaos Emeralds. Sonic then teams up with Tails, Amy, and Rouge in order to rescue Knuckles.

A sequel was announced, [[VaporWare but nothing's been seen of it yet]].
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!!''Tropes featured in the game:''

* ActionCommands: During special skills, and non-damage dealing ones fail completely if you miss even one; see UselessUsefulSpell, below.
* AnimatedActors: The credits are delivered by having Sonic, Tails and Omega [[BreakingTheFourthWall Break The Fourth Wall]] to discuss the developers.
* ArsonMurderAndAdmiration: After working together with Eggman, Tails seems to think of him less as an enemy and more as a fellow scientist, often commenting things like "Wow, I bet Eggman would love to see this!". If you [[DialogueTree call him out on it,]] he'll stop.
* ATasteOfPower: Sort of. [[spoiler:Dr. Eggman has a lot of HP, a lot of PP and a ridiculously powerful and easy-to-execute special attack in Bombardment, as well as an instant kill attack against robots when used in conjunction with Tails. It's not a typical Taste of Power in that you don't start out with him, but he does leave the party about halfway through the game.]]
* {{Badass}}: Knuckles, more so than most protrayals.
* BadassInDistress: The game's plot kicks off by having Knuckles kidnapped by the Marauders after they overwhelm him and Tails in a fight. By the time the heroes track him down, he's [[RedundantRescue already managed to break free.]]
* ButThouMust: Averted. If you bring Cheese to Cream and she asks to join you, while if you say no she does ask multiple times, she does eventually give up.
* ChekhovsBoomerang: Emerl was picked up from ''Sonic Battle'', dusted off, and woven into the Nocturnus' history.
* CanonDiscontinuity: [[WordOfGod Word of God]] states that this game is not canon in any way.
* CanonImmigrant: The Swatbots from the [[WesternAnimation/SonicSatAM SatAM]] cartoon.
** According to WordOfGod, the ''entire game'' was a CanonImmigrant, specifically of Knuckles' [[ComicBook/SonicTheHedgehog Archie Comics]] miniseries, hence all of the uncanny parallels between Shade, Imperatore Ix, and the Nocturnus to the comics' Julie-Su, Finitevus, and the Dark Legion. Ironically this is the closest game you'll ever get based on the comics.
* CantCatchUp: Averted by giving earned experience points to everyone, whether they're in your party, back at the safehouse, [[LeakedExperience and even the characters that haven't met you yet]].
* CantDropTheHero
* [[spoiler:CliffHanger]]
* ColonyDrop: Once again, Angel Island ends up falling when the Master Emerald is stolen. Unfortunately, it crashed onto a city this time.
* ConsoleCameo: A Model 1 Main/SegaGenesis can be seen alongside an Egg Robo in the Metropolis level, and in the Kron Colony level, a Sega Genesis controller can be seen hanging from a beam.
* ContinuityNod: Several. The game is even helpful enough to provide you with a mini-encyclopedia on the previous [[SonicTheHedgehog Sonic]] games in one of the menus so you can get caught up on any of the relevant {{Backstory}} that you might not have played before or had forgotten about.
** Well, ''most'' of it, anyway. Amy having a tarot-themed POW move is not explained, and she'd last been seen dabbling in tarot [[SonicCD some 15 years prior to this game's release]].
** ContinuityPorn: The game makes a ''huge'' point to tie itself in with most of the games of the series.
** ContinuitySnarl: ...But falls flat because it gets ''a lot'' of details wrong.
*** This ''may'' be excusable due to the fact that this is an AlternateContinuity.
* CowboyBebopAtHisComputer: The codex claims that Sonic teamed up with Shadow to stop Eggman in VideoGame/SonicAdventure2. The only time Sonic directly worked together with Shadow in that game was to take down the [=FinalHazard=], which was ''after'' Eggman was placed in an EnemyMine situation.
* DarkerAndEdgier
* DeadpanSnarker: Rouge
** You can also have Sonic dabble in this, if you keep picking the "snarky" dialogue options. Not nearly as deadpan as Rouge, though.
* DialogueTree: As Tails explains it, you usually can choose between getting through the conversation as fast as possible, being nice, being neutral, and being snarky and rude.
* DimensionLord: Imperator Ix
* [[TheDragon The Dragon(s)]]: Scylla and Charyb.
** CoDragons
* DuelBoss:[[spoiler: The final battle between [[EleventhHourSuperpower Super Sonic]] and Imperator Ix.]]
** Also, General Raxos.
* TheEmpire: Ix certainly runs the Twilight Cage like one. His title is "Imperator" for crying out loud.
* [[spoiler:EleventhHourSuperpower: Super Sonic, as always.]]
* {{Expy}}: Shade is pretty clearly an expy of [[ComicBook/SonicTheHedgehog Julie-Su]], and the Nocturnus are expies of the Dark Legion.
** There's even an expied ''area'' with the Twilight Cage. Bioware admittedly just took Archie's echidna history and adapted it to the games.
* {{Evil Albino}}: Imperator Ix
* EvilOverlord: Imperator Ix
* EvilVersusEvil- The backstory gives us [[spoiler:the tyrannical, fascist [[strike:dictator]] Imperator Ix vs the selfish, greedy and [[ArsonMurderAndJaywalking poor parent]] [[VideoGame/SonicAdventure Pachacamac]].]]
* FastballSpecial: Rather common in Sonic's special attacks.
** Played completely straight with his combined special with Amy
* FinalExamBoss: The last battle with Ix tests to see how good you are with the Action Commands. And the one right before it checks your skill at the fleeing/catch-the-fleeing-enemies minigame.
* FiveManBand:
** TheHero: Sonic
** TheLancer: Rouge, Knuckles, Shadow
** TheBigGuy: Big the Cat, Omega
** TheSmartGuy: Tails, [[spoiler:[[EnemyMine Dr Eggman]]]]
** TheChick: Amy, Cream, [[spoiler:Shade (Doubles as a possible [[TheLancer Lancer]])]]
** TheSixthRanger: [[spoiler:Shade]]
** TeamPet: Cheese
* FragileSpeedster: Sonic, naturally. Also, Rouge.
* GenreSavvy: Rouge, to an extent.
* GlassCannon: [[spoiler:Shade]].
* GlowingEyesOfDoom: Ix
* GoodFeelsGood: Surprisingly, [[spoiler:Eggman discovers running and jumping and do-gooding is fun. Or does he?]]
* HeKnowsAboutTimedHits: Tails constantly reminding you to save your game. You can tell him to stop doing that, though.
* HeelFaceTurn: [[spoiler:Shade the Echidna]]
** In the backstory, it's shown that all of the Twilight Cage races were conquerors of some sort. When the Argus Event took them to the Twilight Cage, the Nocturnus conquered them and cruelly dominated them all. This had the somewhat positive effect of causing the other races to have a HeelRealization, since they saw the pain of being dominated.
* HiveMind: The Voxai.
* {{Hypocrite}}: Imperator Ix accuses the other Twilight Cage races of being evil conquerors bent on controlling everything. This apparently makes it excusable for him to be an evil conqueror bent on controlling everything.
* JackOfAllStats: Amy.
* KnightTemplar: Though Shade believes she is doing good and merely helping her kind reach home, she is willing to follow through with Ix's rather brutal strategies of doing so without question. She does not flicker an eyelid at his squad invading innocent civilians or brutally ambushing Sonic and Knuckles [[spoiler:[[NotWhatISignedOnFor until Ix blurts out his true goals of world domination, that is]].]]
** A HannibalLecture by Ix later in the game suggests him to be a KnightTemplar himself, claiming he intends to make the world a better place [[spoiler: by conquering it of course.]]
** Near the end of the game, Knuckles confesses that he's worried ''Sonic'' might be this towards the Nocturnus Clan, leading Knuckles to give Ix a LastSecondChance before Sonic can get there.
* LeakedExperience: Notable in that party members don't actually level up from it until you put them back in the party for the purpose of distributing extra stat and skill points.
* LeftHanging: [[spoiler:CliffHanger]] aside, what's the deal with the "Argus events" that sucked all the races into the Twilight Cage?
* LightningBruiser: Shadow.
* LostForever: Due to the multiple [[PointOfNoReturn Points Of No Return]], almost everything. Most notably, both {{Optional Party Member}}s and a lot of rings.
* MassTeleportation: Any civilization that ended up in the Twilight Cage.
* MechaMooks: [[spoiler:Eggman's usual brand as well as the Gizoids.]]
* MightyGlacier: Omega and Knuckles.
* MythologyGag: Sort of. The game uses a ''lot'' of plot threads that [[AbortedArc Sega discarded or forgot about]], especially from ''Sonic Battle''. And then there's plenty of actual franchise references.
* NewGamePlus: Characters join your party at the same level they were at the end of the game. You're given the freedom to reassign all of their points used to boost their special abilities (except Sonic, since he technically never joins the party), allowing you to play around with new strategies. For some odd reason, although Chao Eggs regenerate, allowing you to collect any rare ones that you may have missed last time, rings don't, which means you have to depend on selling items back to the shops in order to make any more money.
* NobleDemon: Shade [[spoiler:pre-HeelFaceTurn]].
* NoEnding: Combined with SequelHook. The game ends with [[spoiler:Sonic and friends learning that Eggman has taken over the world. And then they thank Bioware for being awesome.]]
* ObviousBeta: SEGA's contract with Bioware had just expired and they shifted their efforts to ''VideoGame/DragonAgeOrigins''. As such, the game was released in a late beta stage, resulting in a bare-bones RPG with no sidequests. One of the most noticeable problems is the music and sound effects: most areas use placeholder Midi-format music of VERY low quality and pretty much all sound effects in battle are placeholder noises.
* OddFriendship -[[spoiler: During Eggman's stint as a member of your party, he and Tails strike up a friendship.]]
* OneHitKill: Spartoi, a special Chao, allows for a random chance to oneshot an opponent regardless of armor when the character he's with attacks.
* OneHitPointWonder: Built on the "[[{{Pokemon}} Shedinja]]" model. [[spoiler: Super Sonic and Super Imperator Ix both do massive damage with each blow, but if they don't take out their opponent in one turn (by not executing the Action Commands perfectly for Sonic, or by the player screwing up enough Action Commands for Ix), their health regenerates and they have to start over]].
* OperationJealousy: Amy claims to have a new boyfriend named Dexter. He's never seen, and depending on dialogue choices, Sonic suspects [[GirlfriendInCanada she's making him up]]. If you're nice to Amy throughout the game, she eventually admits that she made him up.
* OptionalPartyMember: [[GameBreaker Cream]] and Omega, both of which can be LostForever.
* PointOfNoReturn: Multiple. Whatever you do, make absolutely sure you follow [[spoiler:Eggman]]'s advice and don't go into Metropolis unless you're sure you've got everything you need. Also, make sure to get everything ''in'' Metropolis before trying to recapture the Master Emerald. And after that, get everything in Metropolis Ground Zero before finishing the chapter, and ''then'' make sure you have everything from the Twilight Cage before starting chapter 10.
* {{Precursors}}: ''Someone'' lived in the Twilight Cage before anyone else did, and Nestor calls them this.
* RandomlyDrops: Chao are obtained at random each time you get an egg. You could get all the best ones right off the bat or end up with crappy ones throughout the course of the game. Somewhat helped by the ability to trade chao with friends.
** However, the randomness of the chao can be exploited by saving before checking the egg. Different chao are hatched every time you load the same save and check the egg.
* RequiredPartyMember: Often, especially when the team splits up.
* ScyllaAndCharybdis: The names of two locations as well as two robot guardians.
* ShoutOut: A few to the [[WesternAnimation/SonicSatAM SatAM]] cartoon (Swatbots), and the resident RoboticPsychopath calls a character "[[KnightsOfTheOldRepublic meatbag...]]"
** And speaking of ''StarWars'':
--->'''Eggman:''' Inter-dimensional travel isn't like dusting crops, boy!
** One of the sidequests in Chapter Three has you retrieve a man's prized stapler. [[OfficeSpace The stapler in question is bright red.]]
** The whole concept of a still-living echidna race, exiled to the Twilight Cage, sounds like what the Archie Comics did with their echidna race first.
** One of Sonic's POW moves is called "[[VideoGame/MegaMan Blue Bomber]]".
** Imperator Ix is one to ''Literature/{{Dune}}'', where the planet Ix was a major developer of high technology.
** The final battle between Super Sonic and Ix is reminiscent of DragonBallZ.
* SnakeTalk: The N'rrgal Colony.
* SpacePirate: In a sidequest, with TalkLikeAPirate epically mocked by Rouge.
--->'''Rouge:''' Seriously, [[LampshadeHanging why would a pirate from another dimension even talk like that?]]
** [[CrowningMomentOfFunny "Aye. A speech impediment it be."]]
* SpoilerOpening: If one looks carefully enough there is a brief gameplay clip in the introduction movie featuring Shade unmasked and [[DummiedOut curiously in an area that CAN'T be accessed after you unlock her.]]
* SpoonyBard: While Rouge is certainly one of the most entertaining characters, she's not very good aside from her ''very'' valuable steal ability and the team moves.
** If you get the secret characters, Tails and Knuckles turn into these.
* SquishyWizard: Tails and Cream, to an extent.
* StockSubtitle: "Chronicles".
* StoneWall: Big.
* ThereIsAnother: [[spoiler: There's an entire clan of echidnas that were exiled to the Twilight Cage long ago.]]
* TimmyInAWell: Parodied in a side quest. Timothy technically ''is'' in a well, but is a grown man and doesn't need saving; maintaining the well is his ''job''.
* TookALevelInJerkass: Sonic. Especially when the more snarky dialogue choices are taken.
* TwoLinesNoWaiting: Done twice, in Chapters in 5 and 10.
* UsedToBeMoreSocial: Some of Sonic's friends were a bit resentful towards Sonic because he didn't keep in contact with them for two years after the defeat of Eggman.
* UselessUsefulSpell: Several special skills are ''completely useless'' if you don't input every single [[ActionCommands action command]] perfectly. If you didn't, congratulations, you just lost a turn and a bunch of PP.
** There is a Chao that will automatically grant you perfect results... too bad it takes a while to get.
* VerbalTic: Like Yoda, the Kron speak.
* VillainBall: [[spoiler:Way to announce your plans for world conquest right in front of your lieutenant who believed you wanted to simply return to Earth, Ix.]]
* WellIntentionedExtremist: Shade knows what she does under Ix is wrong, but views it as necessary to escape the Cage. [[spoiler:Once she realizes Ix was using the Nocturnus to fuel his bid for conquest, she promptly defects from him.]]
* WhatCouldHaveBeen: This game is an ObviousBeta - the one we have now is a ''very'' stripped down version of what was originally planned. Hackers have discovered that the opening cutscene was to be A LOT longer and have ''an actual battle''. The music would probably be actually good instead of strangely retro soundly. But no! All of this is likely the result of Bioware being bought by ElectronicArts roughly a year before the game released, and Bioware completed enough of the game to fulfill their contract to Sega so that they could concentrate on ''VideoGame/DragonAgeOrigins''.
* YearOutsideHourInside: The Twilight Cage. [[spoiler:Oh ''boy,'' does this come back to bite our heroes by the time they get back...]]
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