Prince of Persia - The Two Thrones - Platform: XBox

Alternate ending sequence:
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Collect all the life upgrades to fight the Dark Prince instead of 
Vizier at the end.

Restore all sand slots:
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While playing a game, click and hold the Left Analog-stick, 
then quickly press B(2), A, X(2), A, Y(2).

Secret Baby Rattle weapon:
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Successfully complete the game on the Easy difficulty setting. 
Then, pause the game and press Left(2), Right(2), Y, X, X, Y, Up, Down.

Secret Chainsaw weapon:
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Pause the game and press Up, Down, Up, Down, Left, Right, Left, 
Right, Y, X, Y, X.

Secret King Sword weapon:
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Pause the game and press Up, Down, Up, Down, Left, Right, Left, 
Right, Y, X, Y, X.

Secret Swordfish weapon:
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Successfully complete the game on the Hard difficulty setting. 
Then, pause the game and press Up(2), Down(2), Left, Right, 
Left, Right, Y, X, Y, X.

Secret Telephone weapon:
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Successfully complete the game on the Normal difficulty setting. 
Then, pause the game and press Right, Left, Right, Left, Down(2), 
Up(2), Y, X, Y(2), X(2).

Sand Gate rewards:
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Deactivate the indicated number of Sand Gates to earn the corresponding reward:

4th Sand Tank: 1 Sand Gate:
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100 Sand Credits: 2 Sand Gates
Eye Of The Storm Time Power: 3 Sand Gates
5th Sand Tank: 4 Sand Gates
150 Sand Credits: 5 Sand Gates
Winds Of Sand Attack: 6 Sand Gates
6th Sand Tank: 7 Sand Gates
200 Sand Credits: 8 Sand Gates
Sand Storm Attack: 9 Sand Gates

Weird voice:
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When you turn into the Dark Prince, before the first chariot chase scene, 
climb all the way up the closest pole near the northern enemy spawn. 
A wierd voice will list what seems like staff credits