After 9 days of unlocking stuff for Super Mario Maker's Create mode, I have 4 levels to show off!
Super Mushroom Boot Camp: 6B8C-0000-0084-9B9C
Goombas' Revenge: 42CB-0000-0094-763F
Hungry At The Bottom Of The Sea: 977D-0000-0098-CF0C
Holding the Fort: 33ED-0000-00A1-31D8
If you have the game and your Wii-U is connected to the internet, give these levels a try. And if you like them, please tip me some stars.