are used primarily for Nintendo Wii games and channels. However, Super Mario Galaxy 2 was released as a full retail Wii game on disc, not as a WiiWare title or a channel. This means:
Searching for a Super Mario Galaxy 2 WAD file typically refers to the Nintendo Wii file format used for installing channels or system components to the console's internal memory (NAND). super mario galaxy 2 wad file free