The Chaos Emeralds are a source of power, If Sonic, Shadow, Tails ,Knuckles or Silver have all 7 emeralds, then they will be more powerful then they were before. There are Chaos Emeralds on Angel Island (the place where Knuckles guards the Master Emerald) and they're really giant, those giant emeralds power the Master Emerald, a giant emerald that is made by the gods, Multiple characters can also use the Chaos Emeralds to help others, e.g. Tails can help Super Sonic defeat the Eggsterminator (from SX) with the Chaos Emeralds and Chaos strength and they can beat Dr. Robotnik/Eggman and his Eggsterminator. If Eggman gets the emeralds, then he can track Sonic and detect his speed limits. See, the power of the Chaos Emeralds are really cool right? Yeah yeah we get it. The emeralds were first seen in Sonic the Hedgehog (game) If you were Super Sonic in a Sonic game, you would need Chaos Emeralds and many rings to keep the power strong

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