http://digitalcybercherries.com/
run from zip file before playing
\NewRetroArcade\Engine\Extras\Redist\en-us\UE4PrereqSetup_x64.exe
You might have to install the roms manually if they don't download automatically. a dialog box should pop up giving u an url
Bask in the glory that is this!
Edit: Right-Shift for coins.