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 pick a path that enhances their unique abilities, like magic for Lulu or strength for Auron. Don’t be afraid to mix and match different paths to create a well-rounded team.

For side quests, definitely don’t miss out on the Monster Arena and the Celestial Weapons. They provide great challenges and awesome rewards. And if you’re up for a challenge, try completing the optional Aeons and unlocking the secret bosses.

As for character builds, experiment with different abilities and see what works best for your playstyle. Whether you prefer heavy hitters, magic users, or support characters, there are plenty of options to customize your party. And don’t forget to level up your Aeons and unlock their abilities too. Happy exploring!