I'm a gamer, and with that comes certain stigmas. In this case I have to say I genuinley find this somewhat awesome (geekish, I know).
As the title says, Super Mario Land has been recreated in Mario Maker and these are the codes you're going to need...
4-3 (Level): 0103-0000-02E1-9992
4-3 (Tatanga Fight): ECCD-0000-02E1-9A32
Check out the full story here
[Credit Eurogamer & NeoGaf