. While you can find "forwarder" WADs—which are small shortcuts that appear on your Wii menu to launch the game from a USB drive—they do not contain the game itself. Legitimate Download Sources & Alternatives Download Newer Super Mario Bros. Wii
Ignoring legality, here are concrete dangers: new super mario bros wii wad file download link
Users of the Dolphin emulator often use WADs to test System Menu functionality. new super mario bros wii wad file download link