Prince of Persia: The Forgotten Sands Walkthrough 01 - The Ramparts

You begin your adventure on the ramparts. There's a battle going on, but you won't fight in it. Instead, you will have to get inside the palace. Go forward and jump over two holes in the passage.
Inside the tower you will meet the first enemies. They're just normal soldiers, so a couple sword slashes is enough to deal with them. There's no way to block in this game, however you can dodge an attack by rolling away. After you're done with the enemies, run up the wall on the right side of the locked door and repeat this once you're on top to get out of the tower and onto the second part of the ramparts.
The prince has wallrunning in his blood, so press and hold down the wallrun button once you're by the edge and don't let it go until you reach the other side. It's very important, as if you let go of the button too early, the Prince will fall down and die. Defeat the enemies (you can try to knock them down the pit) and move on.
Make a wallrun and them run up to grab a fissure in the wall. Pull up, move left pass the curve and lower yourself. Afterwards keep on moving left until the very end. Now use the button combination which makes the Prince run up walls and get to the fissure above.
Move to the left and wallrun to the next fissure. Go pass the curve and lower yourself once.
Once again move to the end and use the wallrun to jump onto the next part of the wall. You will have to fight a big group of enemies here; you can try and knock some of the down with a kick.
After you deal with them, run along the wall and destroy the vases blocking the way with your sword. Note that red orbs will orbs will appear and regenerate the Prince's health. Further in the game you will also come across blue orbs, which regenerate energy. By destroying 100 vases and sarcophagi, you'll receive the [Trophy - Anger Management].
Inside the room, run along up the wall twice, move the analog stick in the direction of the jump (left in this case) and jump - the Prince will grab the fissure on the other side. Pull up, move left and perform another jump.
Wallrun, get to the fissure above and run along the wall left again.
Once you reach the end of the fissure, move the analog stick left and perform a jump. You will once more reach the ramparts. Run above the missing fragment.
Do a wallrun and grab the fissure. Begin moving left and then once again run along the wall to the left - the Prince, once he's by the flag, will automatically take out a knife and ride down the flag, cutting through the material.
Do some more acrobatics and ride down another flag. Once you're below, you will have to perform a new move. Run along the wall for as long as you can and then jump while moving the analog stick in the desired direction. The Prince will jump off the wall and safely land at the balcony fragment.
Jump onto the flag and you will land by a round switch on the ground. Walk onto it and then kill the enemies. After the fight walk onto it again and quickly go through the opened door. You will receive the [Trophy - Memories of Azad].
Do a wallrun and jump left by the end to land in a safe spot. There's a longer sequence ahead of you. Firstly a wallrun, then a jump left and another wallrun to the other side.
Run along the wall which will activate the button found on it and then jump to the right. Quickly run through the closing door. Do a roll if needed.
Run up the wall twice, go left and then up again.