If you could choose one (and ONLY one) game to play on your PSP, what would it be? And why? For me, it's Disgaea Portable. It's such a deep and involving game. Even if you ignore the story mode, there's a never-ending series of random dungeons you can conquer, and so many ways to develop your characters and their weapons. Anyone interested in strategic RPGs should definitely give it a try when it comes out in English.