Here is the full list of all 17 Table Tennis Toon! Playtest achievements.
Complete Rosales Story
Complete Pelegrini Story
Complete Ortiz Story
Complete Ninja Story
Complete Michelle Story
Complete Jolleen Story
Complete Jackie Story
Complete Amy Story
Unlock Rosales in Story Mode
Complete Abe Story
Unlock Ortiz in Story Mode
Unlock Pelegrini in Story Mode
Unlock Michelle in Story Mode
Unlock Ninja in Story Mode
Unlock Jackie in Story Mode
Unlock Jolleen in Story Mode
Unlock Amy in Story Mode