Since we’ve entered a new month, Club Nintendo in the U.S. has changed its downloadable game rewards as per usual, with four new titles available. On the Nintendo eShop for the 3DS, you have the Game Boy Donkey Kong (100 coins) and Brain Age Express: Sudoku (150 coins) for DSiWare.
(Note that you can only claim these rewards on a 3DS—even the DSiWare game.)
On the Wii front, Club Nintendo’s giving away the SNES Kirby Super Star (150 coins) on the Virtual Console, pictured above. Meanwhile, WiiWare gets Maboshi’s Arcade (also 150 coins). All four game rewards will be available until June 30th.