Gregg Mayles, a former staffer on Rare, has been posting several images of concept art of Donkey Kong over the past few days on Twitter. Here’s a look at everything that was shared: First out of the GMF are some early 1993 concept ideas for a reimagined Donkey Kong. pic.twitter.com/Gae85778oY — Gregg Mayles (@Ghoulyboy) August 31, 2015 Next to be...