Story
Sonic worst nightmare, Dr. Robotnik has found all of the chaos emeralds. Fortunatley during an experiment involving the chaos emeralds and Dr. Robotniks new mega weapon, one of his badnik assistants goofed up and the machine exploded launching the chaos emeralds all over Mobius. The race is on to find the chaos emeralds, sonic and tails are on the case, knuckles has decided that he trusts the chaos emeralds only in his hands, Dr. Robotnik his trying to re-obtain them for his 'mega weapon' and Nack the weasel, a treasure/bounty hunter and all round money-a-holic is on the case, when he learns how rare the stoned are he believes they will fetch a handsome price on the market. Inevitably though our heros sonic and tails recover the emeralds, and once more put an end to Dr. Robotniks evil plans.