Black N3DS.
S/N: QW4001*** *
FW: 9.0.0-21U!
Damn I got lucky with this one, went to Gamestop, Walmart and ended up at a Target which had only 4 N3DS in stock, the one sitting right next to mine was a Red N3DS with S/N QW4026, the 3DoomSday.
Oh and also, at the time I got there, the 2 employees who attended me said that there was a line at the opening hoping to get a Majora's Mask edition, heck even two couples showed up while I was waiting for my 3DS asking for the damn thing.
Amazing how much demand there is for that edition, I just don't like the combination of colours of it.
I might as well just grab my black N3DS and print some custom Red/Purple stickers that match that of the MM edition's black sigils, it will look so much better I bet you.