"Donkey Kong Country Mirror Edition God Mode" is not an official Nintendo release. The title likely points to a fan-made modification or ROM hack of an existing Donkey Kong Country game. "Mirror Edition" could refer to reversed level layouts, while "God Mode" would imply invincibility.  The creators and details of such a hack are not known without further details.

Donkey Kong Country Mirror Edition God Mode

Donkey Kong Country Hack Advanced God Mode