If you haven't broken out your copy of New Super Mario Bros. 2 in a while, Nintendo has just released a great reason to play it again. As a reward for players gathering 200 billion coins, three courses have been released based on series classics. As shown here, course 1 brings back 1-1 and 1-2 from the original SMB, while Course 2 features an early SMB 3 recreation and the third is an SMB castle battle with Bowser. All you have to do to access the DLC is go to the Gold Rush mode, then go to the shop and press the button for the Gold Classics Pack. Access to the shop requires SpotPass access, so be sure to activate it in the game's options menu.  From now until 1/31, this course pack will be free of charge. After that, it will be $2.50.