.RKG File Extension
File TypeMario Kart Wii Ghost Data File
What is an RKG file?
Data file utilized by the Nintendo Mario Kart Wii video game; contains ghost data referenced by the game; includes the race time, vehicle, and character.
A "ghost" is a semi-transparent representation of your recorded best timed race. You can race against the "ghost" in order to beat your best time for a specific track.
NOTE: To install Riivolution, extract the apps folder from the download onto an SD card and run Riivolution from the Homebrew Channel on your Wii console.