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Tomonori Sawada is the sound director of Sonic Riders. He did all the sound effects in the game and composed some of the music. He was also the sound director of Sonic Riders: Zero Gravity. Additionally, he composed the music used in Crystal Egg Zone for Sonic the Hedgehog 2 (8-bit version), under the pseudonym "Dawasa". In addition to this, he composed the title screen music and related short jingles for Sonic the Hedgehog 3. Most recently, he supplied all the sound effects used in Sonic Lost World.