Syphon Filter: Logans Shadow
Syphon Filter: Combat Ops
Phantasy Star Portable
Tales of the World: Radiant Mythlogy
Patapon
Metal Gear: Portable Ops(or +)
So far, these games have been enjoyable for me. I recommend Patapon if you're into strategy and rythem(spelled it wrong) games. If you like shooters, then the Syphon Filter series is good. Or if you like a rpg without the typical crap in it, then the rest of the games are great.