Optional Pathway - Moving Image

I have decided to go with the lego mindstorms project as it seems this would look best in my port folio. I had the idea of doing a stop from animation with each of the models being built up step by step. I realize that the program that runs the robobot has to be shown, I havn't yet figured out how I plan to go about this. Most probably in a similar manner to the robot itself. Do stop frame in front of a green screen so the background can be edited.