Shadow of Memories cheats and cheat codes for XBox

Change title screen to Margarette and Dana
Finish all chapters and reach 100% rank

Spring 2000 Tokyo Games Show movie:
Finish the game once

Unlock private Konami game show in Europe movie:
Finish the game after getting 3 different endings

Fall 2000 Tokyo Games Show movie:
Finish the game after getting 5 normal endings and the Extra ending

Change title screen to Margarette and Dana
Finish all chapters and reach 100% rank

Game endings:
There are eight endings to the Shadow of Memories. 6 are available at first, 
but you can get access to the last two EX endings, only if you unlocked 
the first six.

The following events can affect the ending:

In chapter five, say nothing to Margarete or tell Margarete she is your ancester. 

In chapter eight, you can do followings:

Find out the fortune teller's identity
Bring Dana back to the present 
Find Homunculus 
Enter to Wagner's destroyed lab 

Save your game before choose any of them, to unlock the other endings 
without the complete replay. 

Restore energy units 
Let yourself die three times in a row  and you will get three bonus 
energy unit.