Just arrived on stage Hideo Kojima talks about the new Metal Gear Solid: Rising Zan-Datsu passing, which in Japanese means literally "cutting sword". Seems to refer, presumably, to a new way to use the title combined with the possibility of Kinect. In the video shown to follow the protagonist against a sword movements completely natural and very high quality graphics ingame. Still do not know if the sword can be used with Kinect, but the character's movement appear to be calibrated to the millimeter, managing to slice almost anything and really showing a physical reaction.

Update: Below is a demonstration of the game took place at E3

Metal Gear Solid: Rising - E3 Debut