On my Nexus Player when I load any recent version (stable, Play Store, nightlies) after 1.2 brings me into a menu where I get the choice to Load RetroArch or Quit RetroArch. If I load into RetroArch I can’t control it at all with my Nexus Player remote, 360 Controller, mouse, or keyboard.
On 1.2 stable I can load cores, change settings, etc. however I don’t seem to have the manager to download cores that I’ve been reading about.
I’ve heard talk about a leanback interface, but when I load into RetroArch I see the exact same interface as on my phone.
My Nexus Player is up to date with Marshmallow.
Any ideas?