Welcome to the forums.
Re: mupen running, It needs some dependencies. Unfortunately, mupen never really worked out of the box. The auto config doesn’t work, unless you have the dependencies already installed. If it’s a new installation, then chances are they won’t be.
It’s also not the most user friendly interface, re: setting things up. You’ll need to do most of it manually. Think of it being included as an easter egg for testing purposes.
Try running this script;
wget -O /home/cpi/mupen.sh https://www.dropbox.com/s/uxerntgv8kpluzm/mupen.sh?dl=1 && chmod +x /home/cpi/mupen.sh && ./mupen.sh
sudo rm /home/cpi/mupen.sh
sudo rm -r /home/cpi/mupen/
wget -O -rf /home/cpi/apps/Menu/20_Retro\ Games/mupen64plus/action.config https://www.dropbox.com/s/932qp0yqjeta8ot/action.config?dl=1
mkdir /home/cpi/.config/mupen64plus/ && wget -O -rf /home/cpi/.config/mupen64plus/mupen64plus.cfg https://www.dropbox.com/s/9msh8d8js2tek9k/mupen64plus.cfg?dl=1You’ll need to SSH into your gameshell to run this. It runs a script to install the dependencies, and also installs mupen64plus to the /usr/local/bin directory. This should make it run faster than the /home/cpi/apps/emulators directory; or so some people say. I can’t confirm either way.
The action.config file will be overwritten with one to reflect the “proper” location of mupen64plus, as per above, along with cleaning up the formatting a bit in general.
The mupen64plus.config file will be overwritten with one that I’ve been tweaking over time to run nicely. It is configured to be used with the lightkey attachment.
If you have any more queries, probably would be better to either search up an existing thread, or starting a new one. Setting up mupen64plus is something that should be easy, but for some reason or another, people have difficulty. I also made a separate custom image with it pre installed, along with some other things.