In normal Metal Gear games, you get by cameras by sneaking under them, or deploying a chaff grenade to disrupt their electronics. Metal Gear Rising: Revengeance's idea of "stealth" just involves jumping up ten feet in the air and cutting the security camera in half. Why didn't Snake ever think of that?
Along with this trailer, the Japanese website reveals that the game will be released as both a retail game and a PSN download in that region. It won't be available through Xbox Games on Demand, of course, because there is no Xbox version in Japan.