As the title suggests this topic will be dedicated to sharing levels created in Super Mario Maker for the Wii U. I'll get us started with some of my own levels.

My Levels
Many Paths
BDB0-0000-028D-539A

Thwomp Attack!
623D-0000-022B-0945

Collect the Keys
5EFF-0000-0213-6AA3

Beware!
301F-0000-0211-C414

Ghost Fortress 2.0
7832-0000-0210-FB22

Training Journey
687C-0000-01FC-A6F8

Yoshi Rescue
03EB-0000-01FA-A0FC

Underground Adventure
3B06-0000-01F9-84E1

Journey Through the Sky
C3CE-0000-01F0-818F

Key Mania
E43F-0000-01EF-534B

Vine Chase
3339-0000-01ED-8421

Fun With Switches
F507-0000-01EA-67EE

Happy Birthday Mom!
42DF-0000-00F2-42A1

Deadly Maze 2.0
45A3-0000-00E3-CF2F

Choose Your Own Adventure
2372-0000-00D6-F93D

Pyramid Secret
12BB-0000-00C9-B369

Halloween Haunt
C45A-0000-00C8-D4FC

Yoshi Haunt (Automatic)
3AAF-0000-00B4-2F43

Ghost House Haunt
961A-0000-00A7-5FD8

Spooky Dance Castle
BE44-0000-009A-75B8

Quick Swim
14B5-0000-0091-4619

Friendly Field
CE34-0000-0090-7547

Deathless Ghost House
D109-0000-008A-F4AA

Charizard Mystery Dungeon 2.0
C04A-0000-007D-FC1A

Pitfall Cavern 2.0
AE89-0000-0079-093D

Tanuki Maze
3554-0000-0069-7758

Exploring the Inverted Pyramids
5D64-0000-0068-5F7F

Swim... Swim... Hungry!
B7E1-0000-0066-D620

It's A Trap!
9CCA-0000-0061-B325