Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, it’s important to focus on each character’s strengths. Start by following their natural path to learn key abilities. Don’t be afraid to branch out to other sections for more versatility.

For side quests, be sure to tackle the Monster Arena for great rewards and challenging battles. The Celestial Weapons are a must for late-game content, so invest time in completing those side quests. And don’t forget the optional Aeons and Dark Aeons for extra challenges!

As for character builds, customize each one to suit your playstyle. Whether you prefer physical attackers, magic users, or support roles, there are plenty of options on the sphere grid. Experiment with different paths to create a well-rounded team that can handle any situation. Happy exploring!