via ICGamers

We’re a bit late to the party with this one, but sometime over the weekend the Xbox Live Marketplace received a nice new demo being Sega Superstars Tennis.

Courtesy of Major Nelson:

* Content: SEGA Superstars Tennis Demo
* Price: Free
* Availability: All Xbox LIVE regions
* Dash Text: [ESRB: E10+ (Everyone 10+) MILD BLOOD,MILD FANTASY VIOLENCE,MILD SUGGESTIVE THEMES] Take a trip to Planet Superstars and play some crazy tennis with SEGA’s greatest heroes!