Summary [Xbox Live Arcade] Sonic and Tails are back for another adventure in Sonic The Hedgehog 3 as they again battle the evil Dr. Eggman (aka Dr. Robotnik), who is desperately trying to collect all the Chaos Emeralds in order to rebuild his Death Egg. Our heroes must find the Chaos Emeralds before Dr. Eggman does, but winning the race won't b...