best psn game

Hi guys.A few days ago,i download the firmware 6.20 for my psp.Also,i buy 3 50$ Playstation Network card so that i can download many games from PSN.So,what do you think is the best game on PSN ?
In my opinion:Fifa 10,papaton 2,Star Wars Battlefront: Elite Squadron and Fifa World Cup 2010

Ridger racer 2 if they have it if you like racing...Or any metal gear solid game, especially the first, classic :)