Nintendo has released a free Coin Rush course pack for New Super Mario Bros. 2.
The 'Gold Classics Pack' is available to download now free of charge from the in-game shop menu and, according to Nintendo, "features courses based on classic Mario games including the original Super Mario Bros. & Super Mario Bros. 3".
The pack will be available to download for free until January 31, 2013.
New Super Mario Bros. 2 launched exclusively on 3DS in August.
The latest game in the series, New Super Mario Bros. U, is due to launch alongside Wii U this Friday.
Source: Nintendo Press Release