Kingdom of Paradise, known as Key of Heaven in Europe and Tenchi no Mon in Japan, is an excellent rpg for PSP.

The storyline is not that original (basically is a save-the-world kind of game), but it does the job. The gameplay is great and really simple once you get used to it, and the fact that you can create your own martial arts style is a major plus.

The graphics are good, and so is thw length, it takes about 20 hours to complete. All in all, the best I've played in PSP, apart from LC Stories.

If anyone has good Kenpu combos, please share them.