The Kingdom Hearts franchise is much more than melding of game and animation worlds; it's also the tale of Keyblades, magical weapons that are designed to defeat evil. But the Keyblades existed before Sora started wielding it against the Heartless. At the DKΣ3713 Private party event in Harajuku today, Square showed off a trailer for Kingdom Hearts Birth by Sleep, a prequel to the original title. What's more, there were demo stations that fans could get their hands on two levels of the game.