We're mostly used to seeing an amalgamation of different cut scenes in our Dissidia: Final Fantasy trailers; however, this time we're treated to over two minutes of pure gameplay. The battle you'll be witnessing is between Final Fantasy III light and dark reps, Onion Kid and The Cloud of Darkness.
One thing this blogger particularly took notice of was the short pause for the Onion Kid during his break status; he does a class change and then has to choose an ability from a drop down menu. It's interesting to see that while the game is a fast and fluid fisticuff, the developers could still incorporate some of the traditional turn-based Final Fantasy elements into the game. Are you not grasping that thought fully? Well, you will once you see the trailer.