Cheats, Codes & FAQs
Finish the game three times on the same save file, choosing a new story path each time.
At the main menu screen NEW GAME, LOAD GAME, and OPTIONS appear, pick OPTIONS and the picture of Alex will turn into a skeleton.
After finishing the game you will unlock the CREDITS option.
After finishing the game twice on the same save file you will unlock the "Jump To Game" option.
After finishing the game three times on the same save file you will unlock the "Eternal Mode" option in the "Jump To Game" menu.