Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, make sure to focus on unlocking key abilities for each character first before branching out. Don’t be afraid to backtrack to grab important stat boosts or abilities.

For side quests, be sure to complete the Monster Arena challenges for great rewards and tough battles. The Celestial Weapons are a must-have, so tackle those side quests to power up your characters. And don’t forget about the Al Bhed Primers – collecting them all unlocks a special scene at the end of the game.

When it comes to character builds, consider customizing your sphere grid to suit your playstyle. Experiment with different paths to maximize each character’s strengths. Auron makes a great tank with high HP and Strength, while Lulu excels in magic with high Magic and Magic Defense. And don’t underestimate the power of Yuna’s Aeons in battle! Good luck on your journey!