i dont know if anybody made this already but i didn't see it so i made one
just post the name of the game and your name in the game and your code
Like this is one of mine

Game: StarFox Command
Name: LiL Slip
Code: 325 890 152 972

What are those codes Dr. Tails?

well if you have a nintendo DS, and you have a WiFi compatiable game then you can play another people across the world (or other people on the site) wirelessly. go to this site to find out more information
http://www.nintendowifi.com

Oh i didn't knew about that...thanks for the update...

i must be like the only one with a DS on this site cause if you did you would know about this stuff