Sonic, Tails, and Knuckles aim to stop a scheme that would turn their sky realm into an underworld, plunging into the planet's core and the ruined Robotropolis city to confront Dr. Robotnik, unsure if he's ally or foe.
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Sonic, Tails, and Knuckles aim to stop a scheme that would turn their sky realm into an underworld, plunging into the planet's core and the ruined Robotropolis city to confront Dr. Robotnik, unsure if he's ally or foe.