Today is the very last day you can register a 3DS XL alongside Luigi's Mansion: Dark Moon or Pokemon Mystery Dungeon in order to grab a free download of Super Mario 3D Land, Professor Layton and the Miracle Mask, Art Academy: Lessons for Everyone!, StarFox 64 3D, or Freakyforms Deluxe: Your Creations, Alive!. Better act now before it's too late!