Emulator still in active development and getting regular updates. In addition to high score accuracy puNES has nice, standard options, which include good controller configuration, UI, and time machine functionality. Also you have a possibility to do records of game processes.
puNes fully support compressed archives, it means you can use zip archive file with ROM and Path file, so all will be applied automatically.
puNES available for different planform like a:
puNES emulator has save download page on gitHub, you cand find link above.