Nintendo UK has updated its website with a walkthrough of Mario Kart Wii's online multiplayer options.
One or two players can connect to Nintendo Wi-Fi Connection from a single console, and then select from Worldwide, Continental or Friend pools of players.
"Then you will be placed in a new group of people looking for a match, or you will join an existing group," says the website.
"When the latter happens you will become a spectator of that group's race currently in progress, as you wait for your turn to hit the track."