Sword Codes in Prince of Persia The Two Thrones:
On the Pause Screen enter the following code:

Unlocks Swordfish Weapon - Up, Down, Up, Down, Left, Right, Left, Right, X, Y, X and Y

Telephone of Sorrow - After completing the game on Normal: Right, Left, Right, Left, Down, Down, Up, Up, X, Y, X, X, Y, Y

Chainsaw - Up, Up, Down, Down, Left, Right, Left, Right, X, Y, X, Y

Baby Toy of Death - Left, Left, Right, Right, X, Y, Y, X, Up, Down

Computerized Voice:
Just before the first chariot run, (when you're the Dark Prince,) there's a column, which is attached to a canopy, you can climb. When you get to the top of it, (the bottom of the canopy) rotate around it, and you'll hear a computerized voice mentioning the sound team and who they are composed of. Or something along those lines. It'll banter on for thirty seconds to a minute, I forget how long.