Known as the "real" Japanese sequel to the first game, it’s notoriously difficult and was originally unreleased in the West until All-Stars .
A WAD file is a format used for installing channels on the Wii. Because the official 2010 Wii release was just a direct port of the standard Super Mario All-Stars , fans created custom "injects" (WADs) to bring the superior SNES compilation to the Wii. This version includes:
Released in 2010 for Mario's 25th anniversary, this was a "straight port" of the 1993 SNES version. It included Super Mario Bros. , The Lost Levels , Super Mario Bros. 2 , and Super Mario Bros. 3 . Critically, it did not include Super Mario World .
For homebrew users, the WAD file became the superior way to play. It offered faster loading times than the disc version (as the game was installed to the Wii’s internal NAND flash memory) and, crucially, it reunited the "Holy Trinity" of 2D Mario platformers ( Mario 3, Mario World, and Mario Bros. 1 ) under one digital roof.
