You'll need a NES emulator like Mesen: https://www.mesen.ca/
Then download the game and open the .nes file in Mesen.
Edit: I also added a web version you can play in browser. It doesn't run as well as on emulator but it involves no setup.
You'll need a NES emulator like Mesen: https://www.mesen.ca/
Then download the game and open the .nes file in Mesen.
Edit: I also added a web version you can play in browser. It doesn't run as well as on emulator but it involves no setup.