Now you can learn coding concepts hands-free using an Amazon Echo.
If you have an Amazon Echo nearby, you can play the game right now by saying: "Alexa, start the free code camp quiz."
The entire project, along with it's ~100 questions, is open source and on GitHub. We would welcome additional questions. Open a pull request adding your new question to the codebase, or just open a GitHub issue with the question if you're in a hurry.
Here's a video of me and my 11-month-old son Quentin demonstrating the Alexa skill. You can watch the video on the freeCodeCamp.org YouTube channel (3 minute watch).