Sega Superstars Tennis is a tennis video game developed by Sumo Digital and published by Sega. The game was released on March 17, 2008 in Europe, on March 18, 2008 in North America, and on March 27, 2008 in Australia. The game includes 16 playable characters and 10 courts from Sega franchises. In total, 15 Sega franchises are represented in the game.Superstar Mode allows the player to play missions which include exhibition matches, tournaments and tasks based around a specific Sega game including Sonic the Hedgehog, Puyo Pop and Virtua Cop. Completing missions unlocks items such as courts, stages, soundtracks and characters.