Darkman is another of those games based on a movie that I'll never see. But maybe you saw it and bought the game for some reason, and if so, were probably wondering to yourself, "Boy, I wish there were some way I could pick what level I started on instead of schlepping through the whole game every time."
If that's the case, today's your lucky day!
First, toss in your Darkman cartridge and on the title screen, highlight 'High Score', hold down Right and press the A Button.
Done right, you'll be whisked away to the 'Control Screen'
Enter the password DERMA (which sounds vaguely skin-related... clever, I guess) and you'll have lots more options available
Which means that you can start on any stage that you want!
Which is good for: starting a new game where you left off last time, practicing those annoying Photo Stages, or hitting 'W' and just jumping right to the ending.