To install a 100% save file for Super Smash Bros. Ultimate (SSBU) on the Yuzu emulator, you must locate the specific user save directory and replace the existing data with the downloaded files. This process unlocks all 74 base game fighters and potentially additional DLC content if included in the save Installation Steps
: Before making changes, copy the existing files in this folder to a safe location on your computer to avoid losing your original progress. Apply New Save : super smash bros ultimate 100 save file yuzu
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