It will require two UMDs, it’s a large game and will cost you few extra bucks, 7,700 yen to be precise that nearly make $97. It is 33$ more than the regular price of PSP games. Thanks Andriasang for doing the math. Watch the seven minutes long off-screen gameplay footage and decide if the extra bucks are worth it but before you jump in the opinion train, know that it will cost more because of the content.
What ? expecting a US release ? there is no official word on it yet but it may finally make it to North America is your best shot.