Hey fellow Final Fantasy X explorer! When it comes to sphere grid progression, don’t be afraid to mix things up and experiment with different paths for your characters. Try to focus on unlocking key abilities early on to make battles easier.

For side quests, make sure to complete the Monster Arena challenges for some great rewards and tough battles. Don’t forget about the Celestial Weapons quests for your characters’ ultimate weapons, as they can make a huge difference in your party’s strength.

When it comes to character builds, consider specializing each character to excel in specific roles. For example, Tidus can be a great physical attacker, Yuna excels in white magic, and Lulu is a powerhouse with black magic. Don’t neglect the utility abilities like Steal and Use either, they can be very handy in tough battles. Happy exploring!