Valentine's Day will bring an NES port of the Namco arcade classic to portables.
http://www.nintendoworldreport.com/news/33239
The NES version of Dig Dug is coming to the 3DS North American Virtual Console on February 14 for $3.99, according to the eShop.
The game came out on the Japanese eShop last year, and is also available on the Wii Virtual Console in every region.
Oddly enough, a Game Boy version of the game exists, coming out in 1992, but hasn't been slated to appear on the 3DS Virtual Console at all.