While the evil genius Dr. Robotnik is testing the ultimate destructive weapon, one of his assistants makes a big mistake. The resulting explosion scatters five of the Chaos Emeralds across the planet Mobius and sets off a high-speed Emerald hunt!

Sonic
Otherwise known as Sonic the Hedgehog, the blur of blue with an attitude, and the Hero of Mobius. He's quick of wit and fleet of feet. Whenever the peacful world of Mobius is treatened, he's the hedgehog to call.

Miles "Tails" Prower
This little fox got his nickname because of his two tails. The other animals used to tease him until he became friends with Sonic and learned to use his tails to fly. He idolizes Sonic, and follows him everywhere.

Dr. Robotnik
This bad egg is trouble incarnate, always stirring up problems for the inhabitants of Mobius with his latest twisted schemes. The Doctor has one of the Chaos Emeralds, and thinks he knows the perfect way to get the other five Emeralds back and keep that meddling Hedgehog and his fox friend from interfering.

Knuckles
Knuckles the Echidna was the gaurdian of the Chaos Emeralds on the Floating Island. He's strong and smart. Like Sonic, he knows how to Spin Dash. He can also Power Glide through the air, and when he uses his knuckles to tunnel and climb, there's no place he can't go. Dr. Robotnik has tricked him into thinking that Sonic and Tails are out to steal the Chaos Emeralds, and Knuckles is determined to stop them.

Nack the Weasel/Fang the Sniper
Nack(Fang) is a treasure hunter who is after the Chaos Emeralds. Though he doesn't know the true power of the Emeralds, he thinks those big pretty jewels will score a handsome price on the market. And the easiest way to get them is to steal them from someone else. He may not be as fast as the others, but he's tricky, and has a speedy little airbike to help him around.