Diamond/Pearl
Pokemon Diamond and Pearl are the two first normal pokemon games for D.S. In these games you have new pokemon. Also some old features return. Like the real time clock feature. Also using wi-fi you can connect around the worlds to battle and trade pokemon. After you beat the pokemon league you unlock more features in the game. You can upload pokemon from your GBA pokemon games and put them in you diamond or pearl game!(Cannot get pokemon back when you move them though).
For more info click one of the links below
