A small file (usually under 5 MB) that puts an icon on your Wii menu. When clicked, it tells the Wii to launch the actual game file from your SD card or USB drive.
To play the game without a physical disc, the community uses or WBFS formats rather than WADs. File Formats: You should look for .wbfs or .iso files.
Small retro games or indie titles.
If you see a "Super Mario Galaxy 2 WAD," it is likely one of two things:
Internal operating system files required to run hardware. Super Mario Galaxy 2 Wad File
These files are placed on a FAT32-formatted USB drive or SD card and launched using homebrew apps like USB Loader GX or WiiFlow.
Nintendo previously released Super Mario Galaxy 2 as a digital download for the Wii U. This version functions like a shortcut to the original Wii mode and can even use existing save data. A small file (usually under 5 MB) that
The WBFS format is preferred because it "scrubs" away empty data, making the file size much smaller (around 1.3 GB) than a full 4.7 GB disc image. Digital Alternatives