Here are some cheats and tips for the game Eternal Darkness.
View credits:
Successfully complete the game to unlock the
“Credits” option.
Level select:
Successfully complete the game twice on the
same save file to unlock the “Jump To Game” option.
Invincibility:
Successfully complete the game three times on
the same save file to unlock the “Eternal Mode”
option in the “Jump To Game” menu.
Alternate ending:
Successfully complete the game three times on
the same save file, choosing a new story path each time.
Skeleton screen:
At the main menu screen “New Game”, “Load Game”,
and “Options”, select “Options” and the picture of
Alex will turn into a skeleton.