So, if you were one of the lucky few to buy a full-price 3DS (or you took advantage of the numerous early price drops), you're eligible for Nintendo's Ambassador Program (aka, "we're sorry we dropped the price so quickly after launch, please don't hate us" program).
Here's what you'll be able to download starting September 1:
Zelda II: The Adventure of Link
Open Tournament Golf
Super Mario Bros.
Donkey Kong Jr.
The Legend of Zelda