Prince of Persia: Warrior Within Cheats

Unlock Light Sword
The light sword is the most powerful secondary weapon in the game. When in the mystic caves you come upon a door that you must unlock via switch. Directly after that door there is a drop in the floor. Drop down and break the left wall and break the rack to pick up the light sword. As with all secondary weapons it is unbreakable, but if you throw it you lose it for good. The light sword has maximum damage and maximum attack rate.

Unlock Secret Ending
To get the secret ending simply obtain all 9 life upgrades, when you get to the room before the Empress' throne room there will be a new sword waiting for you. It is the water sword and said to be the only thing that can kill the Dahaka. For your final battle, instead of fighting the Empress you fight the Dahaka.

The Dahaka’s attacks are repetitive and predictable. When far away he will shoot his tendrils throw the ground up at you, run around in circles to avoid it making your way ever closer to him. If you get too close he'll shoot out his tendrils directly at you, roll to dodge them. As you roll slow down time and go in for some heavy combo hitting, as you get him lower in health the Empress will help you and shoot him off the arena, he will be stuck on the ledge, stock up on sand tanks (They regenerate around the arena) and slow down time or use Ravages of time to inflict maximum damage. He'll eventually get back up and jump at you, constantly roll until he calms down and remains stationary. Repeat the same method as before until he is defeated.

Life Upgrade Pedestals
With all pedestals found you will be able to get the Water sword which is in the room before the throne room. It will be in the center. The Water Sword gives you an alternate ending as it is the only weapon capable of defeating the Dahaka:

Upgrade Pedestal 1: The first upgrade pedestal is right after you beat Shahdee. Walk up the stairs and you will see a tall altar. Pull it back to open a secret doorway behind it. Follow it throw avoiding the traps to obtain the first life upgrade.

Upgrade Pedestal 2 (Past): The second upgrade pedestal is in the area where you first fight the Crow Master. Make your way up the area to the stairway. You'll see a small metal grate. At the bottom of the stores to the left there are some barrels and a switch. Hit the switch, slow down time and make your way to the grate, roll under it. Go through avoiding traps to get the second life upgrade.

Upgrade Pedestal 3: When you reach the central hall after obtaining the serpent sword turn the turnstile lever so that it faces the doorway with the save point fountain. Facing the opposite doorway walk foreword and to the right, you'll see a ledge. Drop down and wall jump back and forth to make your way slowly down. Once you get down, drop down to the ledge below and wall run and jump off at the end and jump side to side to make your way up. Wall run again and at the end wall jump from side to side to make your way down to a ledge. Make your way to the doorway go through and avoid the traps for the third upgrade pedestal.

Upgrade Pedestal 4:When in the Mechanical tower you will eventually reach a Thrall who is throwing spike beasts. Get him to blow up the left wall (Your left when facing the Thrall) Walk throw and avoid traps to get the fourth upgrade pedestal.

Upgrade Pedestal 5: When you get to the Garden in which you see the whole breathtaking scene make your way up to where you fight Silhouettes and Keepers. Walk to the left to find a ledge where the fence doesn't continue, drop down, move, drop down and wall run to make your way to the doorway across the gap. Walk in, make your way through avoiding traps to find the fifth upgrade pedestal.

Upgrade Pedestal 6: Once you turn on the water in Garden works via turnstile, wall run up the wall behind it, walk in make your way through avoiding traps to find the sixth upgrade pedestal. Upgrade Pedestal 7: In the Prison area after you beat Thrall and make your way up. Make your way to the end of the left side and break a wall, you'll see a door. Head to the right side and midway throw you'll see another cracked wall. Break it hit the switch slow down time and make your way to the first wall you broke head throw and avoiding traps to find the sevenths life upgrade pedestal.

Upgrade Pedestal 8: Inside the library when you make your way up from the walkways beneath it. You see a broken doorway, make your way throw it and get to the railings. You need to jump to the other one and instead of heading to the ledge to the left, head to the opposing doorway (which is still intact) Jump to the ledge and make your way to the right side, jump up, and go through to find your way to the eight life upgrade pedestal.

Upgrade Pedestal 9: The ninth pedestal is located in the room in which you chase Shahdee and she shuts the door behind her. You are required to make your way up and to jump on a bar to open the door, as you make your way up you'll see a cracked grating. Come back here when you have the scorpion sword and break the grate to reveal a crate. Bring the crate out to the left wall, jump on it, wall run up and jump off to reach a ledge above it. Follow the area throw to make your way to the ninth upgrade pedestal.

Unlock Rayman Fist
This is located in the Catacombs. Because the Dahaka is chasing you, consider using slow time to escape him. Get to the section where you have to pull three stones out of the wall to raise the central area. After pulling the first, go to the stairway, make a right, run on two walls and jump to the bar on the right side. Swing from the bar and follow the path and make a quick left. The fist is in a weapon rack to the left. The Rayman fist is unbreakable with a high attack rate but does little damage. If you throw it, you lose it forever.

Words of the Dahaka
When chased by the Dahaka you can translate his insults by reversing time.