Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, my tip is to focus on each character’s strengths. Make sure to unlock key abilities like Quick Hit for Tidus or Doublecast for Lulu early on.

For side quests, don’t miss out on the Celestial Weapons and the Monster Arena challenges for some great rewards. And don’t forget to capture monsters for the Arena!

As for character builds, experiment with different paths on the sphere grid to customize your party members to fit your playstyle. Mix and match abilities to create powerful combos in battle. Have fun exploring Spira!