I just figured it out playing a few minutes ago, it's a single saber move, it's not not listed in the moves list either. Do a backflip, then when you're about halfway through (upside down) swing your saber and you do a backflip attack, it seemed pretty effective against other saber using enemies.
I alredy discovered that move in the demo its in my thread GREAT DISCOVERIES.............. check it out, that thread must be in the 2 or 3 page of the forum because of the recent stupids threads.