Hey fellow FFX explorer! When it comes to sphere grid progression, don’t be afraid to mix and match different paths for your characters to make them more versatile in battle. Focus on unlocking key abilities like Quick Hit for Tidus and Doublecast for Lulu early on.

For side quests, make sure to complete the Monster Arena challenges to earn valuable rewards and unlock stronger enemies to battle. Don’t forget to collect all the celestial weapons and complete the optional aeons like Yojimbo and the Magus Sisters.

When building your characters, consider customizing their stats based on their roles in battle. For example, focus on strength and defense for physical attackers like Auron, and magic and MP for spellcasters like Yuna. Experiment with different abilities and see what works best for your playstyle. Happy exploring!