In order to be able to complete the trials, you must first complete Chapter XIII on any difficulty. Also, if you fail, simply restart to the last checkpoint instead of going through the whole level again.
Requirements: Finish the level without Laura killing anyone.
First, I suggest having a dark crystal in hand for this and I also suggest playing on Warrior difficulty because it’s too easy for Laura to kill someone on Squire difficulty. The only place where Laura can kill someone is at the beginning of the level where the ghouls come out of the floor. Kill the first wave of ghouls and then as soon as more of them respawn, use your Dark Crystal to instantly kill all of them.
Requirements: Finish the level and cross the deadly blade wall without dying, keeping the mechanism at its maximum speed at all times.
This is one of the hardest trials in the game and the most boring without any doubt. You must reach the other side of the room without getting hit by the blades while they’re at full speed. So press twice before passing the first blade and use to carefully make your way through. You can also jump at some places ( in any direction + simultaneously). I would recommend to carefully follow the video that follows to ease your pain.
Requirements: Finish the level by filling the three pots of the Blood Orbs puzzle at the same time.
At the end of the level, there will a puzzle and you must fill the three blood orbs at the same time. It is very easy if you do as follows (rows will go top to bottom and squares will go left to right):
Middle row – Right Square
Middle row – Center square , , ,
Bottom Row – Center Square ,
I friggin' hate puzzles like the last one in the game. Makes me crazy with frustration. The other two trials were quite easy though. Can't say I'm impressed with this DLC. I mean, 800 MSP for two hours of gameplay?