When you arrive at the room with the computer terminal you have to put commands in, you will see this black hole in the wall that contains a puzzle.


The puzzle is sorta easy, the light is provided by your flashlight and you have to guide the pointer through the maze without touching it's margins, just like those old flash games that always ended in a jumpscare.


If you, like me, have ran out of mousepad or patience with this one, you can always hit escape and while in the menu move the mouse where the end of the maze is (see screenshot bellow). You can also move it to the bottom right because there is another empty space there and then move to where the heart is. After Having the cursor in place just unpause the game (hit esc) and it will remain there.


That's about it :)