The trailer features Trevor and Simon Belmont during their whip lashing action. You'll also see some of the "extreme" platforming parts of the game such as swinging with your whip, hanging on ropes, jumping against walls and on platforms as you explore Dracula's castle.
Castlevania: Lords of Shadow - Mirror of Fate will be coming to the Nintendo 3DS on March 8th. It might also be interesting to know that Nintendo will take responsibility for the game's sales, marketing and distribution in Europe. The game has been developed by Mercury Steam and published by Konami.