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 speed and agility, so prioritize unlocking his agility nodes.

For side quests, don’t miss out on capturing monsters for the Monster Arena or participating in the Chocobo Racing. These side activities can help you earn valuable rewards and make your characters even stronger.

When it comes to character builds, experiment with different paths on the sphere grid to customize your party members to suit your playstyle. Mix and match abilities to create versatile characters that can handle any situation. Happy exploring!