Hey fellow Final Fantasy X explorer! When it comes to side quests, there are a few must-dos in the game. Don’t miss out on the Celestial Weapons quests for your characters, as they are super powerful and worth the effort. Be sure to unlock the Monster Arena by capturing fiends around Spira, it’s a great way to earn rewards and level up. And don’t forget about the optional Aeons like Yojimbo and Anima, they can be real game-changers in tough battles. Happy questing!