Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, I recommend focusing on each character’s strengths. For example, Tidus excels in agility and speed, so prioritize those nodes for him. Don’t be afraid to mix and match different paths to create a well-rounded team.

For side quests, be sure to complete the Monster Arena challenges for great rewards and tough battles. Additionally, don’t miss out on the Celestial Weapons quests for ultimate gear. And don’t forget to hunt for the elusive Al Bhed Primers scattered throughout Spira for language mastery.

When building characters, consider customizing their abilities with the use of special spheres. Experiment with different combinations to create powerful and unique builds. And remember, teamwork is key in Final Fantasy X, so strategize how each character’s abilities can complement one another in battles. Happy exploring!