Friend Code

Friend Codes are strings of twelve digits used to allow access to another person's town during online play in, , , and.

In and, Friend Codes must be assigned by speaking to Copper at the checkpoint and selecting "Friend Code!". Once selected, Copper will attempt to connect to the Nintendo Wi-Fi Connection to assign a code; however, due to the termination of the Nintendo Wi-Fi Connection in 2014, it is no longer possible to receive a Friend Code in and.

In and, Friend Codes are instead on a system level and are automatically assigned when the games' respective consoles are connected to the internet.