CheatCodes.com has all the official Dementium: The Ward DS cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Wednesday June 19, 2013 for Dementium: The Ward are shown below.
When you enter the room in chapter 16 where a cutscene plays of the man in the black outfit is standing in the middle of the room breathing very loudly, that means it is time to fight. There is actually one step to beating him. When he does his gravity pull attack on you where his wrists turn white. Shoot his wrists. I recommend the revolver, sniper rifle, or shotgun. Make sure you stay quite a good distance from him because that is what draws him into doing this attack. He will keep doing this attack if you stay away from him, so keep doing this until his entire health bar is drained.
At the beginning of chapter 5: The Courtyard. Go outside after exiting the elevator and let the cut scene play of the girl dropping the key. Now enter the white door near the staircase leading to the tunnel. Go up the stairs and exit the door at the top. There is a door asking for a code to unlock it. Enter 10-31-07(The predicted release date of the game) and hit enter. Now you are in the guard tower way earlier than expected. On the other end of the room there is a dead guard with a sniper next to him. Pick up the sniper :)
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