Are you my hero?


You should get this one during the scene in the passage where you have to run from the monsters, It's pretty much unmissable.

You can fly anywhere.


Awarded for completing the game, I'm not sure if this require you to take any specific door but I assume any of them would do the trick, if you don't get it just load your save and choose another door.

World best striker


After the scene for completing the 2nd night, head to the roof...

You should find a balloon here (right behind my character, sorry for the ♥♥♥♥♥♥ screenshot), just run towards to kick it, achievement should unlock as soon as you do that.

Behind Story


Same as the last one, after beating the 2nd night, head to the 2nd apartament (by the left of yours),
You'll find 4 notes scattered through the house, just read any of them to unlock this achievement.


Fix!


From the last location, head to the living room in apartament 2, you'll find a key in one of the drawers, pick it up.

Now head to the basement...

Here, you'll find Daniel hammering the wall, just speak to him to unlock the achievement.

Kill 30 Ghosts


Self explanatory, should come through natural progression.

10th death


25th death


Self explanatory, I'm not sure if the 25th deaths is glitched but I got it 1 minute after unlocking the one for 10 deaths.