Nintendo Japan released a new Nintendo Direct presentation yesterday in which president Satoru Iwata announced that over 300 billion coins had been collected by New Super Mario Bros. 2 players worldwide.
To mark the proud occasion, a DLC level pack has been made available free of charge - but it's exclusive to Japan for the time being [EDIT: We've had reports that this is now live in Europe as well]. On January 31 2013, the Golden Classic Course Pack will revert to the usual DLC cost of ¥200.
The pack itself is a celebration of past Mario titles, and features a number of classic courses - some of which were selected by fans. Below is the English version of the presentation for your viewing pleasure: