Before you actually start the tutorial, have Reeborg take its first step by running a program in Reeborg’s World.
Hints are clickable and designed to provide useful pointers if you are not sure how to proceed.
Go to Reeborg’s world, click on the “run” button (small white triangle on blue background) and watch Reeborg takes its first step. You can also view this short video to see what it looks like. You may want to watch it in full screen with HD quality selected.