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 each character’s strengths – for example, magic for Lulu and physical attacks for Auron.

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 either – they can really boost your characters’ power. And if you’re up for a challenge, try taking on the Dark Aeons for some epic battles.

As for character builds, consider customizing your sphere grid to fit your playstyle. Whether you want to focus on offense, defense, or a balance of both, there are plenty of options to create powerful and unique builds for each character. Just remember to plan ahead and make use of the various spheres you come across on your journey. Happy exploring!