To get achievements working on the Nes core system.
Make a folder in your home directory and call it Quicknes.
After you have done that you need to Git Clone into that folder.
git clone https://github.com/libretro/QuickNES_Core.git
Next go ahead and compile the project:
Go to the QuickNES_Core folder and run the make file
this will take a while
Loaded SSH on the PC and connected to your Pi.
Now after this is complete you will want to move
/home/pi/quicknes/QuickNES_Core/quicknes_libretro.so to /home/pi/quicknes/
Now you will want to edit
You will want to add this to line 4/Bottom of the page.
quicknes=”/opt/retropie/emulators/retroarch/bin/retroarch -L /home/pi/quicknes/quicknes_libretro.so –config /opt/retropie/configs/nes/retroarch.cfg %ROM%”
You will also want to edit line 2 to
save and upload.
Now reload retropie and enjoy Nes with achievements.