This is a secret cheevo and it is called "Jail break-in"
This is a story related cheevo and therefore can not be missed.
This cheevo will be awarded upon completion of episode 3: High tension / Deep exit.
This is a rather long episode but again like all the other episodes it is very linear so you wont have any problems getting to the end.
This episode sees you at first trying to get back to the leaky brain in slums 404. Along the way you will come to a little courtyard where you will be attacked by a skinner and a few leapers, This is where the tutorial explains about using the spammer to knock leapers off the walls.
If you did not get the cheevo for avoiding the skinner charge 5 times in a row in episode 1 be sure to grab it here.
After that you will climb up the buildings and across the rooftops and you will encounter another skinner, this is a great place to knock a lot of enemies off the roof tops to work towards or even complete the Lord of the ring cheevo.
Once you get to the leaky brain you will have to defend it from a leaper assault and close the tunnel before the timer runs out, To close the tunnel use LB and the RT on the cables, make this the priority and then take out the leapers, be sure NOT to use any fury or combo's, Just use your spammer ONLY for the following cheevo.
The Queen of the hill achievement in Remember Me worth 51 pointsSurvive the entire Leaking Brain assault (episode 3) without using Power or Regen PressensAfter the assault you will have to enter the sewers to find Johnny greenteeth. Eventually you will come to a metro station and be trapped in a moving train cart, when you get attacked quickly spam the doors shut and take out all the enemies and approach johnny greenteeth and steal his memories.
Now you must make your way to La bastille fortress and follow greenteeths remembranes through the mine fields, once you deactivate the minefields you will be attacked by a robot Zorn.
Avoid his attacks and keep spamming it's arm joint with LT+RB until it makes a leaping attack at you, avoid this with the "A" button and while it has its arm stuck in the floor mega spam it with LB+RT. If done right it's arm should break off, if not it will regenerate.
Repeat this for the other arm.
Now it will do some kind of ground pound attack, try to avoid and while it shows it's chest as a structural weak point hit it with LB+RT. Now you should be able to run up to it and terminate it by pressing "B" and you will have a QTE event to do.
Im not sure if this is same evey time but I personally had to hit Y-X-Y.
If you can defeat the Zorn in under 2minuets then the following cheevo is yours. Obviously gonna be easier on easy difficulty.