Works perfectly on original NES consoles.
This game is guarantee to work on original systems only, should ALSO work on 90% of clone consoles as long as they are hardware type console, if you use emulation based system like a RETRO FREAK, RETRON 5 or POLYMEGA, there’s always a chance it may not work on those system.

THIS GAME WILL HAVE SOUND ONLY IF YOU HAVE A NES FRONT LOADER WITH A AUDIO EXPANSION OR ANOTHER CONSOLE THAT HAS THE AUDIO EXPANSION . WITHOUT ONE THE GAME WILL STILL WORK BUT WILL HAVE NO SOUND.

I ALSO SELL AUDIO EXPANSION, SIMPLY PLUG IN NO SOLDERED REQUIRED