To avoid malware-infested "pre-patched ROMs" often found on shady torrent sites, patch the file yourself.
You need a clean, unmodified ROM of Super Smash Bros. (U) or * (J)* – specifically a v1.0 or v1.1 ROM. If you own the original cartridge, you can dump it yourself using a device like a Retrode or a Nintendo Switch Online + Expansion Pack via emulation extraction. If you don’t own the game, downloading the base ROM is technically piracy.
Do not search for a shady "Super Smash Bros 64 Remix ROM download" that is pre-assembled. Instead:
The latest version (as of early 2026) is widely considered the "quintessential" iteration of the mod. Major additions include: Smash Remix 2.0 (Nintendo 64 Mod)