LeapFrog Didj Custom Learning Game Sonic the Hedgehog Race through four action-packed classic Sonic zones, collecting rings to free Sonic's animal friends that were captured by Dr. Eggman! Teaches spelling: Consonant and vowel blends, compound words, contractions, plural words. Library of games featuring favorite characters from SpongeBob SquarePants, Star Wars and Indiana Jones. Kids can customize the game online with the spelling words they are studying in school. Parents connect to the LeapFrog Learning Path to see what their child is learning.