Controller overlay and little alien at bottom has disappear

Hi I writing this to seek help in getting the controller over lay back and only hide when I need to. The tiny alien Retroarch button at the bottom is no longer there only the top menu button. Can someone explain what happen. Ios7

That probably means your config file got messed up. Go into .retroarch and delete retroarch.cfg. It will generate a new one for you when you re-launch. This will also reset all of your other settings, unfortunately, so you’ll have to re-enter them manually.