Hello, recently got my boards and went to install Retrogame and found an easier option to install using:
sudo bash retrogame.sh
Then chose any option on installer and modified: /boot/retrogame.cfg for the button mapping.
Had a chance to test it out last night, got all the buttons working on right side. (I think I missed something on left side as it wasn't working.) Probably missed a ground wire or something.
Anyhow figured I'd mention this install script since it was surprisingly easy to use.
Very cool. I've been trying to find the time to make something like this. I'll be trying this out once I get the new build finished.