Secret ending

Successfully complete the game three times using your same saved game data when starting a new game each time to view a special ending movie the third time the game is completed.



View credits

Successfully complete the game once to unlock the "Credits" option.



Level select

Successfully complete the game twice (select a different artifact in Roman Dude's stage) using the same saved game file to unlock the "Jump To Game" option.



Invincibility

Successfully complete the game three times using the same saved game file to unlock Eternal Mode under the "Jump To Game" option.



Skeleton screen

At the main menu, select "Options" and the picture of Alex will turn into a skeleton.



Invisibility

Use the Reveal Invisible spell with the Mantorok Rune to make your character invisible.



Recovery

When you learn the recover spell, use Chattur'gha (Red) to recover your health, Xel'lotath (Green) to recover your sanity, or Ulyaoth (Blue) to recover your magic.



Defeating zombies

If you have a torch and you are face a large group of zombies, swing the torch at them. They will die in one hit. You will have to do a final blow quickly because they will disappear if you are too