Marvelous Entertainment's Senran Kagura is the game that"s all about large breasted school-girls fighting other large breasted, non-school-girls in some kind of epic battle for an ambiguous goal…no doubt. Probably world domination or something far more sinister. Aside from all that, it's also one of the best looking 3DS games currently in development, with production values out the wazoo, as evidenced by this exquisitely well-animated anime intro.
Don't fool yourself, animation of this quality costs a BUNCH. Also keep in mind that since the 3DS is region locked, and this is only being released in Japan, you more than likely can't have it. Thanks for that, Nintendo.