Use the name 'R Testers ROCK' to play any level.

            Use the name ' Credits' to watch the end sequence. Select Hoth to
            play. I'm not sure about whether a space is required as the first
            character.
 
 

            This is how to edit the hex of shadows of the Empire.
            This is more easily done when you finish a couple of mission. Edit
            the file *.soe in the Shadows of the Empire subdirectory. You will
            find that the remaining lives in the past missions. If you finish
            the 1st mission with 4 lives and the second with 5 lives. Now you
            are currently in the third mission with 5 lives. Look for 05 in the
            hex editor and change it. You can place like 10,000 lives but the
            game will give you 100 lives in the next mission.