Hey fellow FFX explorer! When it comes to sphere grid progression, don’t be afraid to mix things up and experiment with different paths for your characters. Focus on unlocking key abilities and stats that complement each character’s strengths. For side quests, make sure to complete the Monster Arena challenges for great rewards and tough battles. And for character builds, consider specializing each character in a specific role like tank, healer, or magic user to maximize their potential in battles. Happy exploring!