If you see a "Super Mario Galaxy 2 WAD," it is likely one of two things:
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. Super Mario Galaxy 2 Wad File
WAD stands for . These files act like a zip file for the Wii system menu. They are most commonly used for: If you see a "Super Mario Galaxy 2
Internal operating system files required to run hardware. These files act like a zip file for the Wii system menu
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
Small retro games or indie titles.
An enhanced port of the game was released as part of a bundle in late 2025 to celebrate the 40th anniversary of Super Mario Bros. .