In order to run NEO GEO games, you need to install the BIOS file.
The file you’re looking for is named, “neogeo.zip”. Search for it on the internet.
Once you’ve downloaded this file, ssh into the Raspberry Pi 2 via-FileZilla and place it into this directory
Note: This file will be displayed as a game on your list. It won’t be playable.
You will now be able to play NEO GEO games.
Place all NEO GEO Rom’s into this folder:
Do not unzip NEO GEO rom files. Place them inside the folder as a .zip file.