Eggman discovers that the weapon is actually a black hedgehog claiming himself as the 'ultimate life form,' a creature known as 'Shadow.'
Eggman, penetrates the security of a high-level military base. While searching for a top secret weapon known only as 'Shadow,' the evil genius, Dr. Eggman, Sonic begins his quest to stop their evil plan, helped along the way by his old friends: Tails and Knuckles. Once aware of the connection between Shadow and Dr. Meanwhile, across the globe, unexplained incidents occur following hte declaration of world conquest by Eggman himself. Suddenly, a mysterious black hedgehog appears in front of him, grasping a Chaos Emerald in his hand. until Sonic, hero of justice, is accosted by a secret military force code-named G.U.N.Įscaping the confines of a high-security helicopter, Sonic leaps down into the city streets in an effort to flee from him captors.
