Chaos Emerald, Sonic Wiki Zone

The servers are the seven Chaos. Chaos is power, power is enriched by the heart. The controller is the one that unifies the Chaos.Knuckles the Echidna, Sonic Adventure 2 The Chaos Emeralds (カオスエメラルド, Kaosu Emerarudo?) are objects that appear in the Sonic the Hedgehog series. They are seven ancient emeralds and secret stones tied to the Master Emerald that possess unlimited power. Those who hold them can use them to cause miracles and other feats, such as warping space and time, powering machines

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