First I'm hearing of this crap. I don't even use RetroArch, as it isn't as...user-friendly as other singular emulators, in my experience (I'd rather use mGBA/DeSmuME/Dolphin/PCSX2/etc.).
And this is almost 3 years old, too. Hopefully it's gotten better since.
And this is almost 3 years old, too. Hopefully it's gotten better since.