How can you download a game for you to your Nintendo Ds?

First go to the Nintendo DSi game shop (it has a little blue bag) . Then it will tell you to go to system settings. Go there and then enter your pin. Then head back to the Nintendo DSi shop and you can get a game there. If you have a game card that has points, you can get a game. And if you don't, there is one that is for free. It will take a few hours or days for your game to download.