How do you get Three Stars on Final Fantasy x?

Answer 1

• Steal it from Jormungand, Shinryu, Dark Anima.
• You can also fight Catoblepas.
• If you're a Blitzball fanatic, you can also play Blitzball for Three Stars, which are usually given as a first prize (only one at a time though).
• You can also do the Chocobo Race at Remiem Temple in Calm Land, with 5 Chests & No Pole. Doing this will give you 60 Three Stars.
• You can also unlock Earth Eater in the Monster Arena, which'll earn you another 60 Three Stars.