If you want to take the more traditional retailer route, you can grab these through GameStop's website right now.

Wii U

The Legend of Zelda
Donkey Kong
Super Mario Bros. 2
Punch Out! Featuring Mr. Dream
Super Mario World
Super Metroid
F-Zero
Earthbound

3DS

Super Mario Bros.
Metroid
Donkey Kong Jr.
Super Mario Land
WarioLand 2
Kirby's Dreamland 2
Legend of Zelda: Link's Awakening
3D Classics: Kirby's Adventure

Thanks to Alan for the heads up!