How to setup Wifi on a Raspberry Pi image

Using NotePad++ create the following text file and copy it to the root directory of your image:

country=gb
update_config=1
ctrl_interface=/var/run/wpa_supplicant

network={
 scan_ssid=1
 ssid="WIFI-NETWORKNAME-HERE"
 psk="WIFI-PASSWORD-HERE"
}

Then set the file as Unix EOF:

RetroPie: Setting up a Raspberry Pi for retro gaming

Raspberry Pi from Amazon, along with case and PSU.  Fan is optional.

Buy some controllers or use just PS4, XboxOne or any other USB or Bluetooth controller.

Next either:
1) Download prebuilt image from Arcade Punks and install according to the instructions.
or
2) Go manual, download and install RetroPie:

From here you can load your own themes (menu look and feel) using the retropie menu:
https://www.youtube.com/watch?v=PZwRfLlh01M

Load your ROMs using either a browser: http://192.168.100.103:8000/

To enable using the Retropie Setup within the Retropie menus, watch here: https://www.youtube.com/watch?v=DgQDg6SzBDg

or remotely from a laptop using WinSCP:

For sending remote shell commands to the Pi you can use Putty:

The default information is:

Computer name:  retropie
User name:  pi
Password:  raspberry

You can download box art from the games using the builtin Emulation Station menus.  Alternatively, for a more comprehensive solution, covering more games and videos use the Scraper project:
https://github.com/RetroPie/RetroPie-Setup/wiki/scraper

Custom loading screen packs can be downloaded and applied for all consoles:
https://www.youtube.com/watch?v=a2sP8Q9_VdQ

Bezels (images to either side of the playing game) can be added using the Bezel project:
https://github.com/thebezelproject/BezelProject

You MUST only use ROMs from games you have at home.