Chaos Emeralds

The Chaos Emeralds (カオスエメラルド Kaosu Emerarudo) are prominent objects that appears in the Sonic the Hedgehog series. They are seven ancient emeralds tied to the Master Emerald and mystical relics with powerful properties and abilities. Those that hold the Chaos Emeralds can use their powers for a variety of things, such as initiating a super transformation, powering machines, and warping time and space. Anyone who combines all seven of the Chaos Emeralds can command ultimate power. Due to their immense powers, the Chaos Emeralds are usually the target of villains, who desire them to fuel their own ambitions, and of heroes, who want to keep them from being used for evil and use them for good. After the conclusion of a story, the emeralds tend to scatter themselves, and as such characters often collect them throughout the games.