A new trailer for the upcoming PSP title Kingdom Hearts: Birth by Sleep has been released in an update of the official Birth by Sleep website.

The trailer previously seen at this years Jump Festa, an event for anime and video games in Japan, has finally been released to the public on the official site for Birth by Sleep. Coupled with the new trailer were three new wallpapers and new images showing us more of the multiplayer aspect of the game.

Kingdom Hearts: Birth by Sleep will be available soon in Japan on the 9th of January, 2010. There has still been no confirmed release date for the West though.