Natsume, the group who brought you Harvest Moon, have released the trailer to their latest endeavor, Princess Debut, for the Nintendo DS. You can find the trailer here in Quicktime format.
Princess Debut is like an anime version of Cinderella: players (naturally, the game is geared towards young girls) have 30 days to prepare for the big ball where they will meet not one but six handsome Princes (this is apparently a multi-nation ball) and win him over. Because of course that is the dream of every young girl, right?
How to 'prepare for the ball'? Master your dance moves, of course! You can practice for the dance and, "meet and woo the princes through the game's large, branching storyline and exciting event system." So, no one-size-fits-only-the-perfect-girl glass slipper required, and fortunately you don't have to slave away for a cruel stepmother and stepsisters while you are waiting.
Once the player convinces a prince to be their dancing partner (this is a family game, so I'm assuming there's no hanky-panky involved), it's time to go out on the dance floor!
This is a really neat feature of the game: utilizing the Touch Screen on the DS lets you guide your character gracefully across the dance floor in time with their partner's rhythm. And the dance moves are real, taken from moves the professional dancers use. According to Natsume, this makes the game as much fun to watch as it is to play, like watching your friends trying to keep up with Guitar Hero or Rock Band.
And there are 18 dance styles to choose from (including Tango, Latin, Waltz, etc.) as well as a myriad of costume choices for your aspiring Princess.
Princess Debut is scheduled for release sometime this fall.