After the jet Sonic hedgehog wins Chaos Emeralds Dr. Eggman, he decided to take revenge on him and made for the main character very real trap. A friend hedgehog Tails knew of the impending revenge doctors and reported this to his friend. As further developments and the confrontation ended Sonic and Eggman we soon learn, collect pieces of the puzzle if into one image. Substitute one piece to another to get the full circle and discover the history of mishaps in the game Sonic the Hedgehog: Heroes.