From wiki:

All NES titles released include:

* Balloon Fight
* Baseball
* Clu Clu Land
* Donkey Kong
* Donkey Kong Jr.
* Donkey Kong 3
* Excitebike
* Golf
* Ice Climber
* Pinball
* Mario Bros.
* Tennis
* Urban Champion


And some extra levels for a few gba games.
http://en.wikipedia.org/wiki/Nintendo_e-Reader

I don't remember this lasting very long. I don't think people wanted to go through all that trouble to play Ice Climber. And, as I understood it, you didn't get a complete game in card packs. You had to buy multiple packs in hopes of getting the card you want, like with baseball cards. This may be false, but the commonly-held perception (at least among those I knew) couldn't have helped.