Released exclusively for the Creator/{{Sega}} UsefulNotes/GameGear in 1994, ''Sonic Triple Trouble'' – or ''Sonic & Tails 2'' as it is known in Japan – is the sequel to ''[[VideoGame/SonicTheHedgehogChaos Sonic Chaos]]'', and is widely considered one of the best ''[[Franchise/SonicTheHedgehog Sonic]]'' games to appear on the handheld, mostly due to it being the closest in feel to its 16-Bit brothers on the UsefulNotes/SegaGenesis. It features the debut of Fang the Sniper (or Nack the Weasel, as he was initially known in English versions).

Somehow finally collecting the six Chaos Emeralds without catching the attention of Sonic, [[BigBad Dr. Ivo "Eggman" Robotnik]] was testing his latest weaponry when suddenly an accident scattered them once more. Robotnik was able to find one of them, but of course, Sonic and Tails learned about what happened, and now they're off to find the other five before Robotnik can. Expecting this would happen, Robotnik once again deceives Knuckles the Echidna into believing that Sonic and Tails are trying to steal the Emeralds. Thus, Knuckles becomes a nuisance that tries to inhibit the duo's progress. As all of this is happening, Fang the Sniper, a treasure-hunting weasel, has successfully located the other five during the commotion. Are you up to the challenge of thwarting this [[TitleDrop Triple Trouble]]?

In addition to the Pogo Spring and Rocket Shoes from ''Sonic Chaos'', ''Triple Trouble'' also gives both playable characters (Sonic and Tails) their own special modes of travel. In Robotnik Winter Zone, Sonic can shred on a snowboard (far more flexible than in [=IceCap=] Zone in ''[[VideoGame/Sonic3AndKnuckles Sonic the Hedgehog 3]]''), and in Tidal Plant Zone, he can equip himself with scuba jets, which actually allow the blue hedgehog, well known for his {{super drowning skills}}, to ''[[SuperNotDrowningSkills swim]]'', though for a limited time. Meanwhile, Tails – in Tidal Plant Zone – can pilot the Sea Fox submarine, which comes equipped with a torpedo launcher and easy up-and-down movement while underwater. Tails would use the Sea Fox again in ''VideoGame/TailsAdventure''.

Amusingly, on the American and European boxarts, Robotnik is depicted in a slightly modified version of his ''WesternAnimation/AdventuresOfSonicTheHedgehog'' incarnation (this also happened on the North American boxart for the Game Gear port of ''VideoGame/SonicSpinball'', even though the Genesis original used the Classic Eggman; one of many reasons no one mentions the Game Gear version).
!! This game provides examples of:
* AmusementParkOfDoom: Sunset Park Zone.
* ComicBookAdaptation: A 48-page special by ArchieComics.
* CoolPlane: The Tornado, which appears in some of the Special Stages.
* DistressedDude: [[spoiler:After battling Eggman in Atomic Destroyer Zone, Knuckles is shown held in a small prison capsule (presumably since he failed to defeat Sonic in the previous Zone), which Sonic then destroys, letting him free.]]
* DownTheDrain: Tidal Plant Zone.
* EternalEngine: Atomic Destroyer Zone.
* EvilOverlooker: Robotnik in the North American and European box art.
* GreenHillZone: Great Turquoise Zone.
* JungleJapes: Meta Junglira Zone.
* SlippySlideyIceWorld: Robotnik Winter Zone.
* SoundTest: Unlike in ''Chaos'', the Sound Test in ''Triple Trouble'' does not require a cheat code to access it.
* TerribleTrio: Eggman, Knuckles (by virtue of his gullibility), and Fang, hence the English market title.
* TurtlePower: The first boss of the game is a metallic flying turtle.
* UnderwaterBase: Tidal Plant Zone seems pretty industrial. It's effectively Labyrinth Zone but [[UpToEleven with even more water]] and more machines.
* UnderwaterBossBattle: Surprisingly, the first part of the first boss has you underwater, jumping out to hit a turtle robot. Tidal Plant Zone's boss much later in the game is entirely underwater.
* WarmUpBoss: The first boss, a flying turtle, is actually incapable of directly harming you--the only way it can is for you to get knocked into it by a spring moto-bug while being out of your ball form.
* YouHaveOutlivedYourUsefulness: [[spoiler:A possible reason for Eggman imprisoning Knuckles in Atomic Destroyer Zone's third Act]].
* ZeroEffortBoss: Some of the boss encounters with Fang in the Special Stages. In the first Special Stage, he quite literally hits a switch and fries himself.