Ok, so just to clarify/sum up... Tidus was never arrested, correct? This is the impression I was always under. Because (SPOILER) Since the X-2 ending (the best one you can get) begins with the ending scene of X, where Tidus wakes up in the water, it wouldnt make much sense if he was arrested somewhere between the two. Also, the spheres show up because Shuin somehow left them around for people to find and learn from, right? Which is why he's all pissy in the game, because no one has learned anything and people are still fighting?