Does anyone enter these codes that you find on your Wii and DS games. I have been entering them, and I have found that you can only enter each title once.

So in my case I have a account that both me and my brothers use. In some cases we have the same games, but can only enter the title once even though the codes are different.

If anyone is in the same situation and would like to trade UN-entered codes I have codes for Mario Kart DS, Advance Wars Dual Strike and Pokemon Diamond.

If you have some codes and would like to trade PM me and we can make a trade.