To play Mario Kart Wii using a WBFS file on an actual Wii console, you must first "softmod" your system. This involves installing the Homebrew Channel and a Custom IOS (cIOS). Once your system is prepared, follow these steps:
Launch the Loader: Open USB Loader GX or a similar app from the Homebrew Channel. The game should appear in your library, ready to play. Emulation via Dolphin mario kart wii wbfs
If you prefer playing on a PC or Mac, the Dolphin Emulator is the gold standard. Dolphin supports the WBFS format natively. Simply point the emulator to the folder containing your Mario Kart Wii WBFS file, and it will appear in your game list. Emulation allows for enhanced features not possible on original hardware, such as 4K resolution, widescreen hacks, and the use of modern controllers like the Xbox or PlayStation pads. The Mario Kart Wii Modding Scene To play Mario Kart Wii using a WBFS