Hey fellow Final Fantasy X enthusiast! When it comes to side quests, there are a few you definitely don’t want to miss. Make sure to complete the Monster Arena challenges for some epic battles and rewards. The Celestial Weapons quests are a must-do for each character to unlock their ultimate weapons. Don’t forget about the Al Bhed Primers scattered throughout the game – collecting them all unlocks some cool secrets. Lastly, the optional Aeons like Yojimbo and Anima are worth the effort to add some powerful allies to your arsenal. Happy questing!