Vitiated1 unlocked 14 achievements for 250 in Sega Superstars Tennis.
Gensui Akainu unlocked all of the achievements for Sega Superstars Tennis.
Gensui Akainu unlocked 34 achievements for 790 in Sega Superstars Tennis.
NastyMastaDaddy unlocked 2 achievements for 40 in Sega Superstars Tennis.
BrownMan unlocked an achievement in Sega Superstars Tennis.
Insanium Coil unlocked an achievement in Sega Superstars Tennis.
acedawg4 unlocked an achievement in Sega Superstars Tennis.
CHERRY CHEERIOS unlocked an achievement in Sega Superstars Tennis.
NastyMastaDaddy unlocked 14 achievements for 270 in Sega Superstars Tennis.
CHERRY CHEERIOS unlocked 3 achievements for 50 in Sega Superstars Tennis.
SteelSword unlocked 10 achievements for 180 in Sega Superstars Tennis.
Insanium Coil unlocked 6 achievements for 120 in Sega Superstars Tennis.
CHERRY CHEERIOS unlocked 4 achievements for 80 in Sega Superstars Tennis.
CHERRY CHEERIOS added a new game to their profile.