Better ending: Do not fall off the pillars on Level 3. Pick up the
key that is located near the chamber of the headless knight. This
key must be used on Level 4 to free Maria and open the path to
the alternate Mission 5b. Note: The codes for Missions 6b and
7b follow this better ending path.
Extra lives: A bonus life is awarded at the end of each level that
is completed without your character getting any damage.