Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, a good tip is to focus on your character’s strengths. For example, make sure Tidus learns Haste and Quick Hit early on for great agility in battles. Don’t be afraid to mix and match different paths on the grid to create unique character builds.

As for side quests, don’t miss out on the Celestial Weapons and Aeons like Anima and Yojimbo. They can be powerful assets in your journey. Also, make sure to complete the Monster Arena challenges for great rewards and tough battles.

For character builds, consider customizing your grid to suit your playstyle. For example, turn Lulu into a powerhouse black mage by giving her high-level spells, or focus on Auron’s strength and defense for a tanky warrior build.

Happy exploring and may Yevon guide your path in Spira!