For the interested: Jan Paul Posma has done some really awesome stuff with similar inspirations at jsdares (http://www.jsdares.com/) — try dragging around some of the variables in the brick game.
If you're targeting a younger audience flowlab (http://www.flowlab.io/) is a great starter. Compared to Rocky's Boots and Robot Odyssey of my youth, there are so many great tools available to get today's kids into programming.
