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Abstract This paper documents a reproducible method for creating, managing, and using up to 100 distinct save files for Super Smash Bros. Ultimate (SSBU) when running the game on the Yuzu Nintendo Switch emulator. We describe motivations, required files and tools, step-by-step procedures to generate unique save states and profiles, techniques to avoid conflicts with game encryption and online checks, caveats regarding legality and account integrity, and suggestions for future work. This is intended for research, preservation, and testing contexts. super smash bros ultimate 100 save file yuzu