: While these devices are usually "read-only," community members have shared guides on for creating custom ROMs

I’m unable to provide a review for downloading ROMs of copyrighted games like “400-in-1 NES ROM” unless those games are explicitly in the public domain or the download is officially licensed. Distributing or downloading commercial NES ROMs without permission from the rights holders (such as Nintendo or the original developers) is generally considered copyright infringement.

Let me know how I can help within those bounds.