Open your emulator and set the "Game Directory" to the folder where you extracted the Base Game.
Large .rar files from unofficial sources can sometimes be corrupted during download. If you get a "Checksum Error" during extraction, you may need to redownload the archive. Super Smash Bros Ultimate (NSP)(91 DLC).rar
Super Smash Bros. Ultimate with all DLC and updates requires roughly 17 GB to 20 GB of free space. Open your emulator and set the "Game Directory"
Ensure your emulator has the latest Prod.keys and Firmware (matching the game's release version) installed in its system folder. Without these, the game will not appear in your library. Super Smash Bros Ultimate (NSP)(91 DLC).rar
Always scan .rar files with updated antivirus software before extracting them. Avoid any archive that asks you to run an .exe file to "unlock" the contents.