Last time I tried, I couldn't get either a controller or a keyboard to work with RGUI. I'll try again. Thanks.

@mitu I got it working with the runcommand now. Only a small visual issue (no progress bar while downloading a game). But I found a bug in downloadAndExtract, and I opened a pull request :D https://github.com/RetroPie/RetroPie-Setup/pull/2628

@cyperghost Glad to hear but the Jazz Jackrabbit scriptmodule is not ready yet. Since i managed to find out how to create a scriptmodule it will be a lot quicker to get it done. :-) I will very soon begin to create the scriptmodule for Jazz Jackrabbit, but first i will make a pull request and then release it on its own page for manual cloning from its github page.