Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, make sure to focus on each character’s strengths to maximize their potential. Don’t be afraid to mix and match different paths to create unique character builds.

For side quests, definitely don’t miss out on the Celestial Weapons and the optional Aeons like Yojimbo and Anima. They can be a game-changer in tough battles. Also, tackling the monster arena and completing the monster capturing side quest can provide some great rewards and challenges.

As for character builds, consider customizing your sphere grid to suit your playstyle. Whether you prefer strong physical attacks, potent magic spells, or versatile support abilities, there are plenty of ways to optimize each character. Experiment with different strategies to find what works best for you!

Happy exploring in Spira! Feel free to share your own tips and tricks too.