Get into the zone with Sonic! Dr. Eggman is up to his evil tricks again. He"s captured Sonic"s animal friends and transformed them into robotic minions. Race through four action-packed classic Sonic zones, collecting rings and freeing your furry friends. Your spelling smarts and Sonic"s speed are sure to spell defeat for Dr. Eggman and his mechanized mischief. Choose from over 10,000 spelling words to match what you"re studying in school, then download your custom spelling list to study as you play. For use with the Didj Custom Gaming System, sold separately.