Hey fellow Final Fantasy X explorer! When progressing through the sphere grid, focus on unlocking character’s key abilities first before branching out. For Tidus, prioritize his speed nodes to make him a swift attacker. For Lulu, aim for her black magic nodes to maximize her spellcasting potential.

Don’t forget to use the “Move” command to backtrack and access important nodes you may have missed. Completing side quests like capturing monsters for the Monster Arena or obtaining celestial weapons can give you powerful upgrades.

Experiment with different character builds to find what suits your playstyle best. Mixing and matching abilities from different paths can create unique and powerful combinations. Happy exploring the sphere grid!