Hey fellow FFX explorer! When it comes to sphere grid progression, focus on unlocking key abilities and stat boosts for each character. Customize your path based on preferred roles – whether it’s physical damage, magic casting, or support. Don’t be afraid to backtrack to grab missed nodes or switch between character paths for versatility.

For side quests, don’t miss out on the Monster Arena for challenging battles and unique rewards. The Celestial Weapons are worth the effort – aim to complete their associated side quests for powerful gear. And of course, tackling the optional Aeons and Dark Aeons will test your skills and provide great rewards.

When building characters, consider mixing and matching abilities from different paths to create versatile fighters. Experiment with different combinations to find what works best for your playstyle. And remember to keep an eye on your character’s Overdrive mode and customize it for maximum efficiency in battle. Happy exploring!