I'm in love with the 3D Classics line. Not only are they usually superb 3D ports, but they're not just lazily emulated like the Virtual Console releases -- they're actually reworked from the ground up with tons of extra little options.
The next 3D Classic to hit the eShop is Fantasy Zone: Opa Opa Brothers in Japan on March 19th. In addition to the 3D, extra features include the ability to play as another character (Upa Upa) and the power to buy items from the bottom screen. Neat!
3D復刻PJ第2 [Game Watch]