I had a hard time finding the few working emulators, so I post the results here.

Download ZIP Launching GitHub Desktop. If nothing happens, download GitHub Desktop and try again. Launching GitHub Desktop. Syscard3.pce: 262144. The first thing you need to do is download the BIOS syscard files. I have them right here: PC Engine CD Syscards (429 KB) Extract “SYSCARD3.PCE” from my Syscards zip file. Rename it to “syscard.pce”. In Windows, navigate to Ootake's program folder: OS (C:) Program Files (x86) Ootake. Register now and enjoy. Ad-free browsing; Rom recommendations tailored to you (the more roms you rate or add to your collection, the better the recommendations become). Pc engine cd/turbo duo/turbografx cd list bios emulators WoWroms your website to find and download all roms for GBA, MAME, PSP, DREAMCAST and many others.

First, you need the game itself: http://doperoms.com/roms/turbografx_16_ ... 9.rar.html (32 MB)
You may also need a CD BIOS: http://emu-russia.net/en/files/bios/tgcd/
Then you need an emulator.
I tried the emulators from these pages:
http://www.zophar.net/tg16.html
http://www.zophar.net/multiem.html (Only those that mention TurboGrafx)
Those I could get to work are:
Hu6280 -- http://www.zophar.net/tg16/hu6280.html
You have to press F11 (the menu does not work) and select the ISO file.
The problem is that it is too fast.
Mednafen -- http://www.zophar.net/multiem/mednafen.html
You need to copy the file Super CD-ROM2 System V3.00 (J).pce (from the bios package) into the emulator's folder as syscard3.pce.
Then, pass the path to the CUE file in the command line.
Those that don't work:
* DeePCE -- Does not support CD games.
* DPCE -- Does not support CD games.
* TG16 EMU -- Does not support CD games.
* Hu-Go! -- Crashes when I select the ISO. (Segmentation Fault)
* Magic Engine -- Supports real CDs only.
* Ootake -- Copy the bios as 'SYSCARD.pce'.
Create a folder in the 'install' folder named the same as the CUE file (without extension), and copy all game files there.

Syscard3.pce Download

The BIOS starts, but it says 'LOAD ERROR!' when I press enter.
* Project PC2E -- Supports real CDs only. It seems that Ootake is based on this.
* PCejin -- Copy the bios as 'pce.cdbios'.
Tries to open some file called 'Prince of Persia (U).bin'.
If I create an empty file with that name, then it says 'WARN: 0 fewer than pregap (150) sectors in track 2'.
* PicchioEngine -- Does not support CD games.
* TGEmu -- Does not support CD games.
* Turbo Engine -- Shows an error: 'Error while loading CDROM game. If you are using a physical CD drive, make sure there is a CD in it.'
If I delete all tracks from the CUE except the second: it shows an error message about the 'File Cabinet', and then shows black screen.

Syscard3.pce Download

* VPCE -- Does not support CD games.
* SmartGear -- Does not support CD games.
* YAME -- Does not support CD games.
* BizHawk -- I didn't try this one yet.

The TurboGrafx-16 Entertainment SuperSystem, originally known in Japan as the PC Engine, is a home video game console joint-developed by Hudson Soft and NEC, released in 1987.

Emulator	Rom Folder	Extension	BIOS	Controller Config
lr-beetle-pce-fast	pcengine	.7z .ccd .chd .cue .pce .zip	syscard3.pce	/opt/retropie/configs/pcengine/retroarch.cfg
lr-beetle-supergrafx	pcengine	.7z .pce .zip	syscard3.pce	/opt/retropie/configs/pcengine/retroarch.cfg

Emulator: lr-beetle-pce-fast, lr-beetle-supergrafx

ROMS

Accepted File Extensions: .7z .ccd .chd .cue .pce .zip

Place your PC Engine/ TurboGrafx-16 ROMs in

BIOS

Note: the BIOS file is only needed to play CD based games

The BIOS file must be named: syscard3.pce

Place your syscard3.pce file in

Working BIOS files:

Filename	md5sum	CRC32	Comment
syscard3.pce	ff1a674273fe3540ccef576376407d1d	64f78e3c	This is the prefered BIOS for lr-beetle-pce-fast. It is unknown which region or version it is from and is not No-Intro verified, which indicates it is not a perfect copy, but it should be found fairly easily and is what lr-beetle-pce-fast was developed with.
Super CD-ROM System (Japan) (v3.0).pce	38179df8f4ac870017db21ebcbf53114	6d9a73ef
TurboGrafx CD Super System Card (USA) (v3.0).pce	0754f903b52e3b3342202bdafb13efa5	2b5b75fe	Most games work but some like Mirai Shounen Conan and Sylphia will not.

Controls

lr-beetle-pce-fast and lr-beetle-supergrafx utilise Retroarch configurations

Add custom retroarch controls to the retroarch.cfg file in

For more information on custom RetroArch controls see: RetroArch Configuration

PC Engine CD

It is important that the image file (usually .bin) and the CUE file (.cue) match.

CUE files are just text files containing a description of the CD. If you have files named like:

then ensure the first line of the CUE file contains:

Syscard3.pce Jp Download

Any of the following are wrong and will not work:

Advanced Configuration

If you are from the United States, it is likely that you had the TurboGrafx-16 rather than the PC Engine. If you want EmulationStation to show the TurboGrafx-16 logo instead of PC Engine, then you can change the file in /etc/emulationstation/es_systems.cfg

from

to

Note: these above changes to es_systems.cfg with be overwritten when updating RetroPie and you can find more information about this here.

Switching Emulation Station to the TurboGrafx-16 logo:

If you are from the United States it is likely that you had the TurboGrafx-16 rather than the PC Engine. If you want EmulationStation to show the TurboGrafx-16 graphics instead of PC Engine then you should create a file /opt/retropie/configs/all/platforms.cfg with the following contents (note this requires at least v4.1.6 of the RetroPie-Setup script).

Once this is done, please update any of the currently installed PC Engine emulators from RetroPie-Setup and Emulation Station will now use the TurboGrafx-16 logo. Scraping from within Emulation Station should also return TurboGrafx-16 artwork.