The purpose of this memory game is to memorize the locations of the cards in the game and to make pairs of cards by turning them over 2 by 2. Enjoy the fun and Challenge of the world's most popular matching game - Memory - with a Sonic the Hedgehog spin. Turn over the cards to find matches of all your favorite Sonic video game characters. This memory game is based off of the popular SEGA character Sonic the Hedgehog.