Dr. Jones! Dr. Jones! Go to the Passcodes screen in the Options menu and type in FORGEOFF. If you enter the code correctly, you will hear the sound of a photgraph being snapped. Now when you begin a game, all of the levels will be unlocked, and you'll be able to select which one you want to play.

It's everybody's favorite Easter Egg--see the development team! Now you can look upon the men and women who shed blood, sweat and tears to bring you the Infernal Machine. To see them enter CHEESE!! in the Passcodes screen.

To unlock the most difficult version of the Infernal Machine, enter REALHARD at the Passcode screen.