Since the exploit is loaded from SD, it completely bypasses the System Menu, making it difficult for Nintendo to patch, which explains why it still works on Wiimode on the Wii U. Brawl's stage loader loads from the SD card and not from a save file on the Wii itself.
Twilight Hack and Indiana Pwns exploit the save files of their respective games to execute a stack smash and load custom code. It is different from the Twilight Hack and Indiana Pwns exploits in the way it is loaded. Smash Stack works by exploiting the way Super Smash Bros. Smash Stack will not work if the console has any custom stages on it, even the three samples that come with a new file or the stages from the Smash Service. You must have an SD card that is 2GB or less. Note: An SDHC card will not work with Super Smash Brothers Brawl.
