Knytt Underground, the critically acclaimed subterranean exploration game from indie dev Nifflas, is making its way to Nintendo Wii U on 19th December. Released last year on PS3, Vita, PC, Mac and Linux, this edition will also include the Infinity Hype update which adds a huge number of improvements based on fan feedback. It was also include a few cosmetic updates and have full GamePad support. Check out the trailer below to see the game in action and head over to the official site for more info.