Kingdom Hearts: Birth by Sleep
Kingdom Hearts: Birth By Sleep is an action-RPG by Square Enix for the PSP. Birth By Sleep is a prequel in the series that combines characters from Final Fantasy and Disney universes.
Game director Tetsuya Nomura says that Birth By Sleep may be considered Kingdom Hearts 0, a game on the same level and as important to the storyline as Kingdom Hearts and Kingdom Hearts II.
The English version of Birth By Sleep features voice acting by a number of prominent actors, including Mark Hamill, Willa Holland, Jesse McCartney, James Woods and Leonard Nimoy.
First announced at the Tokyo Game Show in September 2007, the game was directed by Nomura & Tai Yasue. The game was released in Japan in January 2010, and is due out in September 2010 in North America and Europe.