Progress: COMPLETE! Time- Pretty close to 6:66 (No kidding!) Hard to tell because you cannot save after the credits.
It felt great to finish a game, a sense of accomplishment that you can only receive from beating a game with an ending, unlike most MMOs. I had all of the components to complete Auron's celestial weapon so I upgraded that and I decided to make some good armor for the end of the game. Boy, what a time consuming process! I had to catch some arena monsters a'la Pokemon to get the items I wanted for customization. The hardest part was the Light Curtain collection. I had to unlock a dragon called Fafnir and beat him 5 or 6 times. He had 1,100,000 HP! I saved that for last and did some Monster Bribing in Omega Ruins for my Auto-Hastes. I completed my armors late Saturday night and went to sleep; my showdown with Sin was coming to fruition.
Now, let me say this: FFX's US version makes it waaaaaay too easy to over-level. (You'll find out why in a moment.) On my first playthrough of the game I could not beat Sin before he casted his giga-gravitas (or something like that). After the cutscenes about luring Sin in and getting up on the deck to confront him the battle began. Time to take out his fins! I had Tidus tell Cid to move closer, Yuna casted Regen on herself, and then Wakka freaking destroyed the fin in one hit... Okay, its just phase one I probably did a little extra training. Fin #2 I guarded twice and had Wakka finish that one off. -Cutscene of everyone jumping onto Sin- Repeat battle sequence with Sinspawn. Sin (without his fins) began to fall to the ground (maybe they should have been called wings). He sprouted some ethereal ones and flew up to the top of Bevelle and waited. The main gun was broken on the airship so they decided to fly into Sin's mouth. After wandering around for a while Seymour showed up again. Okay, time for a real battle. He had four big discs surrounding him. They were targetable so I made Wakka use his Overdrive on them. 0 damage... Yuna double casted Ultima- battle over. huh? Seymour does some whining and Yuna finally sends the jerk to the farplane.