Beat the game and Prince of Persia 1 will be playable in the extra options menu.
11/16/2003
Unlock Prince of Persia 2
Around 33% of the way into the game, you will receive a new sword. Continue on until you break a wall and the Prince says, ''It's said they built this palace on the ruins of another...'' Once you cross the next room, you will find a rotatable switch. Directly behind this switch is a breakable wall, although it doesn't appear to be one. If you hit it three times, you will find another room and you will receive a message informing you that Prince of Persia 2 is now unlocked.
You can also rotate that switch until it points to the new room and it will open a gate that allows you to play Prince of Persia 2 right there without having to exit back to the Extra Features screen.
1/2/2004
First level in original Prince of Persia in 3D
Start a New Game and stay on the balcony. Press in the left analog stick, then quickly press A,X,Y,B,Y,A,X,B. You'll enter the fist level in the original Prince of Persia in 3D.
1/23/2004
Classic Passwords
Once you beat the game the classic Prince of Persia game will be available. Here are some passwords for that game: