Tekken Dark Ressurection - Best Game ever. It never gets old, Its quick to load, fast Gameplay, Beautiful graphics, Nice character customization, and offers a good challenge. I bought the game when it first came out and I still cant beat the last dojo maybe I shouldnt have set it to Extreme Dificulty. I dont know about the ghost download things, i never understood it and how to make it work though.
The Warriors - For the price its a kick ass game, 19.99 New, Its basically a port of the PS2 version but it plays well and feels good, no loss from the original even has some extra perks as well. The Warriors of the Night Minigame is cool to play on the fly as well.
Socom Fireteam Bravo - I got it used a while back and its really good, if you got your own Wi-fi network at home or play at a hotspot youll find alot of people still play this, its got fun solid online play and nice weapons.
(I picked up Fireteam Bravo 2, only played one mission and online for a bit, lil bit to get used to)
Metal Gear Solid P.O. - Awesome Awesome game, although a lil tip remember to save before fininshing the main game i lost all my Multiplayer Characters and info. maybe its just me.
Metal Gear Acid - A Card game?...Yeah i know weird, but after a while you get used to it and it gets fun and presents a nice challenge.
Ridge Racer - Beautiful graphics, easy gameplay, quick races, nice addition to your library
Lumines - Nice, but gets repetative, dont know about the sequal havent played it.
I wouldnt Really reccomend the GTA Games, theyre great for playing at home but dont really work to well on the go or outside.