I used a spare Raspberry Pi 3 for a RetroPie game emulator plus an old Sony PS3 game controller.

In theory, it sounds great. Thousand of old games for about a $100.

In practice, the games I've tried run, but barely.

Has anyone come across games that run fantastic on RetroPie?

I used this very good YouTube guide to setup RetroPie.

Retropie 3.6 Tutorial - A beginners Guide to Setting up RetroPie on the Raspberry Pi 3

I got games from, well, let's just say it's somewhere the recording and movie industry don't like, by searching for "ROMS"

I was going to try RetroArch on the PC, as it's getting good reviews.

Top 10 Emulators for PC - 2016