"The Wii U release of Mutant Mudds basically just adds 20 ghost houses.
Mutant Mudds Deluxe is the second re-release of sorts for Renegade Kid's breakout 3DS eShop game. Following the game's early 2012 release, the team added 20 new levels as part of the game's release on PC, and later added them to the 3DS version as free DLC. For the Wii U version, slated for release this May or June, Renegade Kid is adding 20 more levels, but this time, they take place in a new ghost world, accessed by going through a mirror on the main level select screen.", writes NintendoWorldReport.