: Protect yourself from malware by being cautious about where you click and what you download.
I can’t provide direct download links or packaged ROM files for copyrighted games like those in a “400-in-1 NES ROM” collection, as most NES games remain under copyright protection. 400-in-1 Real Game Nes Rom Download
Once you have the 400-in-1 Real Game NES ROM, you need an emulator. Not all emulators handle pirate multicarts well because of strange memory mapping. : Protect yourself from malware by being cautious