All Working Prince of Persia Cheats - Xbox 360

Unlock Classic Prince and Princess
Go to the "Extras" menu and enter "52585854" at the "Skin Manager" menu.

Unlock Altair (Assassin's Creed) Prince Skin
Go to the "Extras" menu and enter "13372805" at the "Skin Manager" menu.

Achievements
Complete each achievement to get the allotted gamerscore:

First Meet (15) - Encounter Elika.
Save me please (15) - Discover Save Me.
Ahriman's end (30) - Kill Ahriman.
Explorer (15) - Explore every part of every region.
Block Master (15) - Blocking 50 attacks.
Deflect Master (15) - Deflecting 20 attacks.
Biggest combo (15) - Do 14 combo hit in fight.
Be gentle with her (90) - Do less than 100 save-me throught the game.
Breaker (15) - Use a enemy to break something.
Concubine Special (15) - Defeat the concubine without using grab.
Speed and peace (15) - Kill 10 generic enemies before they spawn.
Alchemist Special (15) - Defeat the Alchemist without using the acrobatic button.
Thrower (15) - Throw 10 generic enemies in pits.
Assassin View (15) - Find the Assassin view.
Titanic view (15) - Find the Titanic View.
Jumper (15) - 500 coop jumps.
Precious Time (15) - Take one minute to think (at the right time).
Beginner Listener (15) - Trigger one dialogue with Elika.
All the basic (15) - Completing the Canyon.
Explorer (15) - Use Compass (first time).
Master Healer (90) - Last Healing.
Hunter's end (15) - Kill Hunter in his lair.
Warrior's end (15) - Kill Warrior in his lair.
Beginner Healer (30) - Healing 01.
Concubine's end (15) - Kill Concubine in her lair.
Alchemist's end (15) - Kill Alchemist in his lair.
Against the wall (15) - Win a wall mini-game in fight.
Sparkles chief (15) - Collect 600 sparkles.
Sparkles casual (15) - Collect 300 sparkles.
Sparkles novice (15) - Collect 400 sparkles.
Sparkles collector (15) - Collect 500 sparkles.
Sparkles rookie (15) - Collect 100 sparkles.
Sparkles veteran (15) - Collect 700 sparkles.
Sparkles expert (15) - Collect 800 sparkles.
Sparkles hardcore (15) - Collect 900 sparkles.
Sparkles beginner (15) - Collect 200 sparkles.
Sparkles maste (15) - Collect 1001 sparkles 30.
Race Ruined Citadel (15) - Run from the Sun Temple's Fertile Ground to the Fertile Ground in Windmills in 5 minutes.
Race Observatory (15) - Run from the Fertile Ground in the Construction Yards to the Fertile Ground in Heaven's Stair in 6 minutes.
Race High Castle (30) - Run from the Fertile Ground in the Royal Gardens to the Fertile Ground in the Coronation Halls in 4 minutes.
Race Lava Rift (30) - Go from the Fertile Ground in the Tower of Ahriman to the Fertile Ground in the City of Light in 7 minutes.
Warrior Special (15) - Dodge 20 warrior attack in one fight.
Hunter Special (15) - Deflect hunter 5 times in one fight.
Good Listener (15) - Trigger more dialogue with Elika.
Perfect Listener (15) - Trigger a lot of dialogue with Elika.
Climber (15) - Found the highest point in the world.
Diver (15) - Find the lowest point in the world.
Speed Demon (15) - Finish the game in less than 12 hour.
Gone baby gone (90) - The End.
Combo Specialist (15) - Find every combo in the game.

Additionally, there are eight secret achievements:

Into the Storm... (10) - Congratulations, you have started the adventure!
Saved! (10) - Congratulations, you have unlocked Elika's saving ability.
Death of a Concubine (20) - Congratulations, you have killed the Concubine.
Now who's the Hunter? (20) - Congratulations, you have killed the Hunter.
Death of a Warrior King (20) - Congratulations, you have killed the Warrior.
Traitor's End (20) - Congratulations, you have killed the Alchemist.
From Darkness...Light! (30) - Congratulations, you have reimprisoned Ahriman.
To be continued... (80) - Congratulations, the game is complete...the story has only just begun...

Unlock Princess Jade Shauni Photowoman
Complete the game's story mode for a skin of Jade, the principal protagonist in Beyond Good and Evil.

Assassins' View
Wrapping around the Martyr's Tower are stairs which lead to that area's feRtiLe grounds. Midway up these stairs is a suspicious looking beam. Put the prince dude and the Persian princess (Ormazd is the light god of the old Persian faith) on that beam for this task to register.

Highest and Lowest Points in the Game
To get the highest point in the game, defeat the Alchemist in his Observatory.

To get the lowest point in the game, look at the perimeter of the tree shrine while in the desert. Near the edge of the cliff, there is a small room under the shrine's roots. Stand inside for this task to register.

Easy "Precious Time" Achievement
Defeat Ahriman, then allow the game to idle for one minute before cutting any trees and proceeding to the ending credits.

Easy "Titanic View" Achievement
The fertile grounds for Machinery Grounds is on a giant airship. Put the prince and the Persian princess on the beam at the ship's prow.

Easy "Climbing To New Heights" Achievement
Defeat the Alchemist in his Observatory.