I think that it's a Dating Sim game or at least it's similar to a Dating Sim game.
It won't be probably translated into English. In Japan there are countless DS Games after anime series. The US Game Developers are looking for games that can bring many buyers, this game would bring just the Vampire Knight fans to buy it.
it already is.
Yes Buffy the Vampire Slayer and Vampire knight
You can get it on amazon or ebay but you wont find it in an ordinary video game store in america but in japan,maybe
unfortunately, it's just the vampire knight ds game(only jp). well, it was released last 2009, and i doubt ther will be an english game of it . . Unless if there will be a season3 of VK. But there has not been any plans. :(
no you can not
Download it here http://www.megaupload.com/?d=KA00NGMB It is a game for the Nintendo DS. You would have to buy it online because as of the moment it is only being sold in Japan, and only being sold in Japanese.
Today
In the first series of the anime 'Vampire Knight' there are 13 episodes. But there is also the second series 'Vampire knight Guilty' which also has 13. So, in total there is 26 episodes of Vampire Knight.
It is the second season of the Vampire Knight anime based off of the Vampire Knight mangas.
Why the vampire knight of course!
Yes there is. It is called Vampire Knight DS and has already come out. The only problem is I don't believe it is in english. The game is a dating simulation and you play as Yukki Cross and can fall for any of the male vampires in the actual manga.