You cannot unlock additional stages. The Nintendo DS version of Sega Superstars Tennis has a **fixed roster of 6 courts**, all available immediately from the main menu. There are no unlockable stages via gameplay, trophies, or codes.
| Time of Day | Court Name | Sega Franchise Theme |
|---|---|---|
| Daytime | Tennis Club | Generic / Sega Sports |
| Seaside Court | Sonic the Hedgehog (Green Hill vibes) | |
| Jungle Court | Super Monkey Ball / Samba de Amigo | |
| Nighttime | Tokyo Tower | Jet Set Radio / Shinobi |
| Casino | Sonic the Hedgehog (Casino Night) | |
| Space Station | Phantasy Star / Virtua Fighter |
The console versions (Wii, PS3, Xbox 360) have **12 courts** (including House of the Dead, ChuChu Rocket!, Golden Axe, Space Harrier) and unlockables. The DS cartridge capacity limited the content.
Enjoy the variety in characters (16 playable) and mini-games instead!