Donkey Kong Country: Tropical Freeze

Donkey Kong Country: Tropical Freeze is the most recent Retro release, and their first game on the Wii U; along with the new console came a large overhaul of the engine, with a lot of old formats being removed, a lot of new ones introduced, and a lot of the remaining ones being overhauled completely.

Trivia

 * There's a lot of leftover remnants of a PC build running on DX11 that was presumably used during development, including an archive of compiled HLSL shaders, numerous references to DX11, and a controls setup for PC.