Sonic X: New World Saga (2003)

Small but speedy blue hedgehog Sonic infiltrates evil Dr. Eggman's base in an attempt to secure the Seven Chaos Emeralds and save his buddies Cream and Cheese in this anime movie based on the popular video game. But when all the emeralds merge during the struggle, Chaos Control becomes overloaded and transports Sonic to the human world. Finding himself alone, Sonic must get a grip on his new surroundings and try to locate his friends.