Got me addicted to playing this more times that I wanted to. Since this is a mouse based application, after I played and failed, I need to move the mouse to click on the button the restart and again reposition the mouse to move the sugar cubes. This message (if you have only one button to retry) can be a timed box that automatically displays the message and disappears after 3 or 5 seconds. Or you can simply provide an option to dismiss the box using the keyboard instead.