Canny Super Mario Maker player KHace has remade the entirety of Super Mario Land, the 1989 classic that saw launched with the Gameboy, within the DIY Mario game on Wii U.
You can see the whole thing played through in the video below:
Or, thanks to NeoGAF, you can have a play through of the recreation yourself using the level codes below:
4-3 (Level): 0103-0000-02E1-9992
4-3 (Tatanga Fight): ECCD-0000-02E1-9A32
There are some particulars to Super Mario World that aren't in Super Mario Maker which KHace has managed to recreate within the game. For instance, Mario's submarine in the underwater levels has been replaced by a Koopa Car and the koopa troopers die to be replaced by bob-ombs, something Mario Maker doesn't normally support. It's all very impressive.