Sonic Triple Trouble (lost Master System conversion of Sega Game Gear platformer; 1994) - The Lost Media Wiki

Sonic the Hedgehog Triple Trouble : Sega : Free Borrow & Streaming : Internet Archive

Sonic the Hedgehog: Triple Trouble - Sega Game Gear - Artwork - Box

What would happen if SEGA bought the whole entire IP rights to the Pokemon franchise from Nintendo allowing SEGA to do whatever they want with it? - Quora

Sonic Triple Trouble (1994) Game Gear vs GameCube vs PS2 (Which One is Better?)

Sonic Frontiers, Sonic Wiki Zone

Editing Sonic the Hedgehog (lost build of cancelled Sega CD port of Sega Genesis platformer; 1992) - The Lost Media Wiki

Will we ever see a comeback of old consoles like Sega Genesis, Nintendo NES, and Atari Jaguar? - Quora

Hacks - Sonic Triple Trouble SMS

SegaSonic the Hedgehog (lost build of cancelled 32X port of arcade platformer; existence unconfirmed; 1994) - The Lost Media Wiki

Sega Genesis: Most Up-to-Date Encyclopedia, News & Reviews

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Sonic Triple Trouble on Sega Master System! [Fan-Made]

Hardware Classics: Sega Dreamcast