Nintendo DS game Nanostray is a family-friendly game that lets you into the inner workings of your computer-based encyclopedia. To help you understand the text, here's a video of the game's narrator, John, explainer on the game's website: In Nanostray, you are a school teacher trying to find the right words to write in your encyclopedia. By pressing the A and B buttons, you can switch between the two and change the order of the words. The game features a narrator, John, who tells you how to write the text and how to change the order of the words.