Mindstorms NXT 2.0

The NXT 2.0 is an updated version of the original NXT. Many features from the original have been replaced, such as the Light Sensor has been replaced with a Color Sensor, and the Sound Sensor has been replaced with a second Touch Sensor. The building instructions from the original have also been modified to accommodate for the changes. For example, the new version of Alpha Rex has the Color Sensor mounted higher on the arm to allow for hands. No changes have been made to the NXT Intelligent Brick.