So for those who have a Wii U and Mario Maker, why not showcase off your levels? Leave the course ID and name, a short description and a 1-5 difficulty rating.
That being said, here are some of mine =3
ID: 0067-0000-0099-010f K.K's Skywalker
Difficulty 0/5
Stay still and let the course play itself. This is my first autocourse, made for a bit of fun and to figure out some of the gravity mechanics.
ID: 335E-0000-0061-6B1A Aerial Acrobatics
Difficulty 3/5
Sky stage centering around a number of tricky jumps.
ID: AB4C-0000-005C-D041 Bowser's Parkour
Difficulty: 4/5
Parkour is a theme in all of my Mario Bros. U stages, and this is one of the more challenging ones. Be sure to get that star at the end!