The cat is running around the street to collect the food at a crowded intersection. As the game goes on it gets more and more crowded and more dangerous for the cat. When the cat stands still, time stops, when te cat moves, so do the pedestrians. The longer you wait, however, the less points you will receive for the food you collect. Find the right balance of speed and caution.
Use the mouse to move the cat around. When you've collected the pick ups, use the left mouse button to push pedestrians out of the way.