Make the... well, I don't know what it's called. If you don't have this type of engine(yes, you need an engine for this to work) I'm sure you can figure out a way to put a different one on it.
Step 3: Step 3
Put it all together. Attach the red connecter thingies on the thing whose name is unknown to the blue rods on the legs. Turn left for best results.(Due to the way the motor isn't balanced. You can stand it up the way I have it, or you can lay it down so the K'NEX logo on the motor faces up. It works both ways.