In order to run TurboGrafx 16 games, you need to install the BIOS file.
The file you’re looking for is named, “syscard3”. Search for it on the internet.
Once you’ve downloaded this file, ssh into the Raspberry Pi 2 via-FileZilla and place it into this directory
Place all TurboGrafx 16 .pce files into this directory:
“PCE” stand for “PC ENGINE” which is the Japanese name for TurboGrafx16.
You will now be able to play TurboGrafx 16.