This is the first trailer that Square Enix released for their new game, Final Fantasy Versus XIII; it has no relation to the other FFXIII games. It simply shares the name and the origin story of the world - everything else is completely different.
Now, this trailer has awesome music and an awesome looking character. I really suggest you check out the other video I posted as well, which shows off the even more amazing gameplay! The gameplay looks far better than anything I've ever seen in any Final Fantasy game before! (and it looks far better than Dragon Age Poo! I mean two..)
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