WiiConnect24 is the name of the former online service for the Wii. The system was connected to the internet 24 hours a day, thus the name. The reason for that is so even when the console is off, the console can still transfer data through WiiConnect24. For example, a player's friends can visit your town in Animal Crossing: City Folk even while they're not playing your game. Or, they could download new maps and characters overnight while they're not playing. WiiConnect24, like Nintendo Wi-Fi Connection uses friend codes, but instead of one friend code per game, it's one friend code per console. Players were able to download Nintendo DS demos through WiiConnect24 and play them on their DS. The service was shut down on June 28, 2013 globally.