When you run low on lives, return to the first level (And So The Adventure Begins). When you start, go to where the bee is located and jump to the floating platform furthest from the well with the Gobbo on top. Keep on Stomping (or double-jumping) on it until it will not let you jump any more. The game will proceed to a secret level with no monsters. Exit by going to the stars on the ground, and then finish level 1.