Doing battle against the ultimate being: OMEGA! He's the absolute HARDEST boss in the entire game, and even a Lv.99 and fully prepared party can be completely annihilated against him if you don't have a bit of luck on your side.
Thought I'd post a video of my fight against him just because I could. =P
IS THAT SO?! WELL THEN, I LOOK FORWARD TO SEEING YOU MAKE YOUR FEEBLE ATTEMPTS!
Haha. I really am curious as to if anyone will defeat OMEGA besides me, though. I suppose if someone DOES, it will take longer than a few Months to find out =P