Despite lacking in innovation when first released, New Super Mario Bros. 2
gets continually newer
as DLC arrives. The latest packs, arriving in Japan today for ¥200 each, include the Kiroku ni Challenge C Pack, a time attack course in which you get as many coins as possible, and another pack all about riding dangerous moving platforms.
These two DLC packs have not been announced outside of Japan yet, but there are still Nintendo Direct presentations at noon EST for both the US and Europe.