Konami has confirmed a Metal Gear Rising: Revengeance demo will be available to download from the PlayStation Store on December 13.
According to Siliconera the demo, which was included with copies of Zone of the Enders HD Collection, encompasses a VR training stage teaching players to slice and dice things plus a battle against an enemy called the Bladewolf.
CVG user only_777 has played through the demo and put together a video, which you can watch below.
As an added bonus, here's another video showing off some of Raiden's moves:
Source - CVG