Here is the proper, cleaned-up title for that piece:
Super Smash Bros Ultimate [NSP] Update v1301 super smash bros ultimate nspupdate 1301rar new
Since your file ends in .RAR, it is a compressed archive (like a .ZIP file). You cannot use it as-is on the Switch. Here is the proper, cleaned-up title for that
Super Smash Bros Ultimate NSP Update 1301.rar file.Smash Ultimate [v1301].nsp).
.nsp file of update 13.0.1.RAR (Roshal ARchive) is a proprietary archive file format used for data compression and splitting large files into smaller parts. It is not an official Nintendo format. In the context of your string, “1301rar” means that the 13.0.1 update NSP has been compressed into a RAR archive, often split into multiple volumes (e.g., .part1.rar, .part2.rar) for easier uploading to file hosts that cap file sizes (e.g., 1GB or 500MB limits). The RAR format may also include password protection, recovery records, or comments directing users to the original uploader’s website. Download an extraction tool on your PC (e
Thus, the presence of “rar” is a strong indicator that the file is being distributed through unofficial channels — typically forums like GBAtemp, /r/SwitchPirates (now banned), or dedicated Discord servers. It has nothing to do with Nintendo’s infrastructure and everything to do with circumventing file-hosting restrictions.
From a legal standpoint, downloading and installing an NSP update for Super Smash Bros. Ultimate without purchasing the game or owning a legitimate license is a violation of copyright law in most jurisdictions, particularly under the Digital Millennium Copyright Act (DMCA) in the United States and similar laws in the EU and Japan. Nintendo has aggressively pursued legal action against sites and individuals distributing such files. Moreover, circumventing the Nintendo Switch’s security measures (required to install unsigned NSPs) violates the anti-circumvention provisions of copyright law, regardless of whether one owns a legitimate copy of the game.
Ethically, the issue is more nuanced but still problematic. Super Smash Bros. Ultimate was developed by hundreds of people at Bandai Namco and Sora Ltd., with music, art, and character licensing from dozens of third-party companies (Square Enix, Microsoft, Sega, etc.). Piracy deprives these creators and rights holders of revenue. Even if one argues that a pirated copy of an update is merely a patch for a legally owned game, the act of obtaining that update via an NSP file still requires hacking the console, which voids warranties and enables further piracy.