Two new vids teach us a thing or two on how Dissidia: Final Fantasy's dramatic progressive battle system works, so pay close attention children. In the first one, keep watch over the big numbers that hover over the character HUD. This is the "Brave" stat. These numbers determine your attack power. If you attack while this number is at zero, then you do no damage. Also, did you notice that some attacks didn't damage HP, but instead started screwing around with the Brave numbers? Yeah, you'll want to watch the second vid (after the break) to fully understand that.
What's going on there is that some attacks drain an opponent's Brave and adds onto yours. This adds a bit of strategy as you can take an enemy down to zero and he'll go into a "Break" status. It's some sort of temporarily vulnerable state. It's a new take on the usual beat em' genre. We can't wait to see more of this game at TGS.