Hey Shaymin not everybody knows what the humble bundle is. Might be wise to do a quick paragraph, or add it on to your quick explanatio, here, let me get you rolling here. Also be a good chap and put a link for code.org, would ya?
The bundle offers a pay-what-you-want system where by donating at least the minimum amount (in this case a dollar) you receive download codes for the first set of games. Additional games can be received if your donation exceeds a certain threshold on a tier based system. The proceeds are then split between the developers and charity. the Nintendo bundle supports code.org, a charity that looks to introduce more people to computer science.
There's also a question on how to get the bundle because I saw no sign of it when I checked the eshop. I know its on the humble bundle site but you can't assume the readers know anything, we are the ones coming to you to learn more.