Hey fellow Final Fantasy X explorer! When it comes to side quests, there are some must-do ones to enhance your gameplay experience. Don’t miss out on the Monster Arena, where you can battle powerful foes and unlock rare items. The Celestial Weapons quest is also crucial for unleashing your characters’ full potential. Make sure to hunt down all the Al Bhed Primers for some sweet rewards. And of course, the optional Aeons like Yojimbo and Anima are worth the effort to add some extra firepower to your arsenal. Happy questing!