Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, don’t be afraid to mix things up and experiment with different paths for your characters. This will help you unlock a variety of abilities and stats to make your party more versatile in battles.

For side quests, make sure to complete the Monster Arena challenges to earn valuable items and unlock powerful abilities for your characters. Also, don’t forget to hunt down the optional Aeons like Yojimbo and Anima for some epic boss battles.

When it comes to character builds, focus on maximizing each character’s strengths. For example, Tidus is great for physical attacks and speed, so prioritize agility and strength nodes on his grid. Meanwhile, Lulu excels in magic, so boost her magic stat and unlock powerful spells for her to unleash in battle.

Happy exploring, and may the spheres guide you to victory!