Little Nightmares II

This is a missable achievement in Chapter 2, the school. Just after you climb the rope ladder from the playground into the actual school building, there is a hallway with a room you can enter on the left. (You have to enter this room to grab something throwable to progress the level anyway.) On the far left of the room, on the floor in front of the last set of bunk beds, is a paper airplane that you can grab. Head back to the window you came into the building through, and you're going to need to throw the paper airplane out the window. Be prepared to do this multiple times, as it's tricky to find the correct point to stand so the airplane will go all the way out the window. If it looks like it went out the window but the achievement didn't pop, it probably landed on the windowsill. Hit the menu button and select "restart from checkpoint" to try again (you'll have to run down to the toy room and pick up the airplane again), because I don't think there's any way to get the airplane back once it's stuck up on the windowsill.

As for the point to stand - I used the two bench/drawer things in the background as a reference point, and the point where I finally popped the achievement was standing in line with the first/left knob on the second drawer-thing. (Or the third knob from the left, if you count along them all.)

During Chapter 2: School, you'll enter the playground, and then come up a rope to get inside.

Enter the toys room in the back, and you'll notice a paper airplane that you can pick up.

Take the paper airplane back to the window you came from, and throw it out to unlock this.

After climbing the rope ladder from the playground into the school building, there'll be a hallway with a room you'll enter on your left (which you have to go there anyway and grab something throwable to progress the level). Far left of the room on the floor in front of the last bunk beds set will also be a paper plane you can grab. After grabbing the paper plane, head back to the window where you climb the rope ladder and throw it out the window to pop the achievement/trophy.


Note to self: I personally did this on the first try, so be prepared to do this multiple times as it's tricky to find the correct spot. If it goes out the window, but the achievement/trophy dosen't pop, it probably landed on the windowsill. If so, restart last checkpoint to try again.

Chapter 2: School
Past the playground and climbing the sheet rope to get into the building you’ll enter a hallway. Go down the hall and then up and you’ll find a room with bunk beds in it on the left. On the left side of the room is a small paper plane, pick up the plane and run back to the window you came in and throw it outside.
You’ll have to stand a bit farther away from the window then you might think, but keep trying and you’ll find the spot to throw it out.

In chapter 2, once you reach the outdoor playground and climb the rope to the top window, enter the room on the left side of the corridor in the back and grab the paper plane. Carry it back to the window you came through and throw it out.

To unlock the Fly Free achievement in Little Nightmares 2 you'll need to throw a paper airplane through the window in Chapter 2 (the school chapter) You can find the paper plane in the room that is just after the blanket rope you climb to enter the school, the window that you have to throw it through is the one that the rope blanket is attached to. Here is my own video guide that shows how to get the Fly Free achievement. The guide for the Fly Free achievement is at the 7:57 mark in the video.