The debut trailer doesn't show one lick of actual gameplay, but does give us other informative niblets all while being an entertaining tennis spectacle. The trailer does confirm that SEGA characters Aiai (Super Monkey Ball), Beat (Jet Set Radio), Ulala (Space Channel 5), Amigo (Samba de Amigo), Nights (Nights), Dr. Eggman (Sonic the Hedgehog) and our blue Sonic the Hedgehog to be included in Superstars Tennis. We also suspect other "mystery" characters to be included or unlockable, because that's usually how these games go. So, enjoy the Sega Superstars Tennis debut trailer and be sure to watch for Amigo's introduction. His stone, expressionless face creeped us out, but the sound of his maracas made us smile for some reason.