Small retro games or indie titles.
These files are placed on a FAT32-formatted USB drive or SD card and launched using homebrew apps like USB Loader GX or WiiFlow. Super Mario Galaxy 2 Wad File
A standard Wii game like Super Mario Galaxy 2 is roughly in size. The Wii's internal storage is only 512 MB, meaning a full retail game literally cannot fit into the space where WAD files are installed. Small retro games or indie titles
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. Super Mario Galaxy 2 Wad File