As you can probably tell from the title, yes, Super Mario Maker for Nintendo 3DS uses the Lua scripting language. This is a very interesting find that I'm sure people will want to take a look at. The Lua files can be found in the RomFS, under /UIX/Final/UIX/scripts, and seem to do a lot of different things. From what I see, it also has methods and functions linked to the UI of the game. My question is, does this mean we could make our own patch to add in networking features?