Jan 05, 2017 A Quick guide on setting up Wii and GameCube on Emulation Station Links: Emulation Station Basic Setup: https://youtu.be/wyRKFY9F3yY.
Now this guide isn't about the software end, only because there are so many tutorials that explain it better than I could, but I will give a quick explanation, as well as link you to some of my favorite tutorials. I'll do my best to answer any questions about this process as I can, I'm just not posting it here so I don't have to reinvent the wheel.
Just know that you will need to download the newest release of the RetroPie Project SD-card Image, and burn that onto a bootable SD card of 4GB or more. Once you insert the SD card into the Pi, you can follow any of these guides along the setup process. It will take some time, but once you're done you can change the boot screen to my custom PiStation boot up screen if you'd like to stick with the whole PlayStation theme. Download boot screen here.
Some of the most helpful tutorials:
I recommend you use paste this code into your RetroArch.cfg file so you can exit your games by holding Select + Start, as well as saving by Select + L2, and loading by Select + R2:
Assuming everything is working fine, and you have figured out how to put ROMS onto the Pi, then you can continue.