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. Remember, you can always backtrack and unlock nodes you may have missed. For side quests, make sure to complete the Monster Arena challenges for some great rewards and tough battles. And for character builds, focus on maximizing each character’s strengths – for example, Tidus excels in agility and speed, so boost those stats for him. Happy exploring!