Pump it Up Zero for PSP

It's avaliable for Pre-order. Supposed to be released sometime in August.
http://www.play-asia.com/paOS-13-71-bj-49-en-70-25rm.html

It's similar to DDR but has opposite arrows.
As in: middle, upper right, upper left, lower right, and lower left.

Controls are as such:
D-pad Up or L shoulder button = Upper left arrow.
D-pad Down = Lower left arrow.
D-pad Right or Square = Middle arrow.
Triangle or R shoulder button = Upper right arrow.
X = Lower right arrow.

Gameplay includes very nice background videos, and high graphics (for PSP) with the interface.

Songlist consists of 111 songs in these genres:
Trance
Synthe-pop
K-pop
Pop
Techno
Synthe-Rock
Tech-metal
and Dance.

This is the second installment of this game actually.
The first one was Pump it Up Exceed.
I own it and personally enjoy it.

There was also a PS2 release of Exceed. With a pad. But the game is very difficult to get the hang of at home. It's better to play it at the arcade machines. OR on your PSP ^^.

Also check my profile for a preview of one of the main songs: Love is a Danger Zone 2.