Donkey Kong Country 4 is a rejected video game pitch that was going to be released for the Nintendo DS.
According to Rare employee Paul Rahme, it was internally suggested at Rare to make a new Donkey Kong Country game for the Nintendo DS, as remaking the trilogy for the Game Boy Advance gave the developers experience and a good basis for making a sequel.[1][2] The pitch ended up not getting much traction internally and was dropped.