Special Stage (Sonic 3 & Knuckles), Sonic Wiki Zone

Special Stages, also called 3D Special Stages, in Sonic the Hedgehog 3, Sonic & Knuckles and the lock-on game Sonic 3 & Knuckles are a series of extra levels. Here, the player must collect blue spheres and avoid red spheres on a checkerboard-covered, spherical planet. To enter the Special Stages, the player needs to find the Giant Rings that are hidden in the regular Zones. Upon clearing a Special Stage, the player will receive a Chaos Emerald. In the locked-on version of the game, multicolored

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