SEGA Superstars Tennis is an upcoming Tennis video game developed by Sumo Digital and published by Sega. The release date is set for March, 2008. The game will include 16 playable characters, and 10 courts from SEGA franchises, including Sonic the Hedgehog, House of the Dead, Alex Kidd, Space Channel 5 and many others. It has been announced that fourteen Sega franchises will be represented in the game.
an extended description!