Prince of Persia: The Two Thrones cheats and cheat codes for XBox

Unlock secret sword:
Pause the game play and press the following buttons on your controller:
Up, Down, Up, Down, Left, Right, Left, Right, Yellow, Blue, Yellow, Blue

Unlock Baby Rattle of Death Weapon:
Pause the game play and press the following buttons on your controller:
Left, Left, Right, Right, X, Y, Y, X, Up, Down 

Ulock Telephone of Sorrow 
Pause the game and press the following buttons on your controller:
Right Left Right Left Down Down Up Up X Y X X Y Y 

Unlock Chainsaw 
Pause the game play and press the following buttons on your controller:
Down, Down, Up, Up, Right, Left, Right, Left, Y, X, Y, X 

Unlock Swordfish Weapon 
Pause the game play and press the following buttons on your controller:
Up, Down, Up, Down, Left, Right, Left, Right, Y, X, Y and X 

Unlock Sand Gate rewards:
Fourth Sand Tank - Deactivate 1 Sand Gate. 
100 Sand Credits - Deactivate 2 Sand Gates. 
Eye of the Storm Power - Deactivate 3 Sand Gates. 
Fifth Sand Tank - Deactivate 4 Sand Gates. 
150 Sand Credits - Deactivate 5 Sand Gates. 
Winds of Sand Attack - Deactivate 6 Sand Gates. 
Sixth Sand Tank - Deactivate 7 Sand Gates. 
200 Sand Credits - Deactivate 8 Sand Gates. 
Sand Storm Attack - Deactivate 9 Sand Gates. 

Unlock Video gallery:
Finish the game. 

Different endings
To fight with the Dark Prince instead of Vizier at the ending:
Get all of the life upgrades.