Think about the person who made it, They put a lot of effort Into something They Aren't even gonna get paid for, By the way this is free And super mario maker for 3DS Costs a lot
I mean which design, also MegaMan77 the key is (8XCXY3A4)
When it wants to write a bunch of files, press yes or ok or whatever thing it says to the bottom right corner, also when it say over write a file, also click yes :)