Mario Kart Wii
"Mario Kart Wii" allows players to install the "Mario Kart Channel" on their Wii console. The channel can work without inserting the "Mario Kart Wii" disc into the console, but to compete in races and time trials the disc is required. The use of the Mario Kart Channel allows for a number of options. A ranking option lets players see their best Time Trial scores for each track and compare their results to those of their friends and other players worldwide, represented by their Miis. Players will have the option of racing against the random or selective ghosts, or improving their results gradually by taking on the ghosts of rivals, those with similar race times. Users had the option to submit these times for others around the world to view. Players could also manage and register friends using the channel and see if any of them were currently online.