Mario Kart Wii/Wi-Fi

Mario Kart Wii uses Nintendo Wi-Fi connection to support a wide amount of options online, including leaderboards, downloading and uploading ghost data, friends' status, records, and multiplayer modes, both Battle and Versus.

All online options can be viewed from the Mario Kart Wii channel without accessing the game.

The tournament mode can by accessed through Wi-Fi.

The most unique aspect is sometime usually from a week to a month is when the blue light came on your console, that means you get the message (which you normally do) update your software or a Mario Kart Wii challenge. When it comes to Mario Kart Wii challenge, you normally have to race with new conditions but without the Gamecube controller (you'll be lucky if you decide not to have the Mario Kart Wii Channel) and also sometimes challenge you to race with the Wii Wheel so be prepared whenever you receive the message.