Hey fellow FFX explorer! When it comes to sphere grid progression, focus on maximizing your characters’ strengths. Use key spheres to unlock important nodes early on, like Yuna’s Holy or Lulu’s -ga spells. Don’t be afraid to mix and match character paths to create unique builds.

For side quests, don’t miss the Celestial Weapons and Aeons like Yojimbo and Anima. They can be game-changers in tough battles. Also, completing the monster arena and capturing all monsters is a fun challenge with great rewards.

When it comes to character builds, experiment with different abilities and don’t stick to traditional roles. For example, turn Kimahri into a powerhouse by branching him into other characters’ paths. And always remember to customize your own weapons and armor for that extra edge in combat. Happy exploring!