The Way of the Narrow

The game that I'm creating or trying, to create is basically a ripoff of the scary maze game, but without the girl from that exorcist movie. Its more like if you touch the narrow edges, the ball will black out or disappear and you must go back to the start. However, Im having trouble figuring out how I should delete the ball hen the player loses. I can't seem to make the huge rectangles needed to make the borders of the maze.