The days of needing to pirate a complete NES set are fading. Nintendo has provided, and the community has created, amazing legal ways to play.
If you do find a magnet link or a direct download, you are accessing dumps from the "Scene" – underground groups who rip games. The most trusted standard for accuracy is . These groups ensure their dumps are bit-perfect copies of the cartridge. link download complete nes rom set
In conclusion, while I can't directly provide or link to a downloadable complete NES ROM set due to copyright and other concerns, I encourage you to explore the options mentioned for accessing NES games in a legal and safe manner. The days of needing to pirate a complete NES set are fading