Click the green flag. Use the arrow keys to move Mimi the mouse through the maze and collect the cheese. 10 points for every time Mimi touches the cheese. You have 10 seconds to catch the cheese, or it moves to a different spot. There is a high score. Try to beat it! Watch out for the ghosts and beetles. If you touch either of them the game ends. The beetles run around the maze at random. The ghost pops up every 5-10 seconds and follows you until it vanishes.
The code is from book written by Jon Woodcock. :)