Do you have a McVans Video Games, Ebay Games, or Game Crazy near you? That's a good place to start.
If not there, try Nintendo.com, Ebay, Amazon, Walmart, or any other game selling site? Ordering online can be more expensive so if you have a local gaming storre, that's probably better.
If none of this works for you then, well I guess I can't help you! ^_^
-Torchic23