From the back of the box:
"Your assignment, if you choose to accept it, is to catch the elusive Mr. Blick. He walks in a funny head over heels movement. In order to catch Mr Blick, you must get him to stand up in the middle.
"To begin play, put Mr. Blick in the starting place marked with the arrow. Hold your thumb over the arrow and tilt the tray from side to side. Mr. Blick will careen crazily around the tray. See if you can land him in the hole"