Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, I recommend focusing on each character’s strengths. For example, Tidus is great for agility and Wakka for accuracy, so prioritize those nodes for them. Don’t be afraid to mix and match different paths to create versatile characters.

For side quests, be sure to complete the Monster Arena challenges for valuable rewards and tough battles. The Celestial Weapons are also a must-have, so invest time in getting them through various mini-games and challenges.

As for character builds, consider customizing your party based on the roles you want them to play in battles. For example, Auron can be a powerhouse with high strength and defense, while Yuna can focus on magic and healing abilities. Experiment with different combinations to find what works best for your playstyle. Happy exploring!