In an earlier project I worked with a group of talented, young individuals. It was an experimental continuation of our efforts to teach children to work with technologies once we felt that other actors had picked up the ball regarding young programming and such. They were selectively recruited and then invited to be trainees at our workshop, learning new skills and working on projects. Once the project was over we stayed in touch.
These persons just so happened to be perfect testers for our prototype, and today I was able to get two of them over for some proper testing. It went just well, we learned that the game is actually kind of fun. We also learned a bit about when it causes nausea and gave us some ideas of how to proceed. Good times!