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 speed, so prioritize those nodes for him.

For side quests, don’t miss out on the Monster Arena and capturing all the fiends in each area. It’s a great way to level up and earn rare items. Also, make sure to complete the celestial weapon quests for some powerful gear.

When building characters, think about customizing their paths on the sphere grid to complement their abilities. For example, you can turn Lulu into a physical attacker by guiding her towards those nodes. Experiment with different builds to find what works best for your playstyle. Happy exploring!