a BIG NO
No, you need their friend code. UNLESS, you are in the Battle Tower doing a Wifi tournament. That's the only way without friend codes.
Yes you do need a friend code to battle on wifi
You go to the bottom floor of the Pokemon centre, HOWEVER you need to have friend codes to actually battle
Sure I will battle :D
You can trade, battle, and have voice chats with your friends over Wifi in Pokemon Diamond/Pearl, but to do so you need to know your friends' Friend Codes, and your friends need to know your Friend Code.
they let u find friends on wifi
The only way to get a friend code is to go in the union room in the Pokemon center and use wifi with a friend and it willask do you want to exchange friend codes and say yes
Exchange friend codes, and add them to your Friend Roster on Nintendo WiFi Connection. You must enter your friends friend code and they must enter yours for this to work.
You still get friend codes.
Yes, you do. Id say where you can get wifi, although i have no idea. xD I dont have wifi.....which kinda sucks. :/
Action replay codes.
try going on wifi with a friend