Joining online friends

If your Nintendo 3DS has system software version 2.2.0-(4, 3, 2, 1, 0)E or higher, you can see which games your online friends are playing. You can even join your friend's game if  the corresponding game supports it, and if you have the same Game Card inserted. To do this, simply bring up their friend card and tap Join Friend's Game.

Click here for more information about performing system updates on your Nintendo 3DS.