In this game the player plays as Sonic against Tails, Amy, and finally Knuckles in a series of tennis matches. It's a best of three for each character, and once Knuckles is beaten, the player has won the game. High scores won through in-game prize money can be uploaded to a server to compete across Japan. The original game was later replaced with a graphically enhanced version for newer phone models and Yahoo's Keitai service (formerly Vodafone).
- The font for the title is similar to the font used in Sonic Battle.