I think I have specified the paths too much before, I think it is a bit obvious so I will only mention where you have to go.

Laboratory Ignore the code room, continue to the third phone and spam "F" to hang up.

On the bridge, hurry up the stairs and follow to the last phone, which cannot be hung up.

From here you must follow a route depending on the category you are doing:

1- Any%/Bad Ending Head to the hole and drop.

When the screen is black go to its left without moving the cursor. When you can see, follow the path in a straight line until you can't move.

2- Good Ending Start by pressing the last lever, then the second, and finally the third. This will prevent you from having to dodge the shelves.

When the screen is black, move forward and to the right without moving the cursor. When you can see, go outside until the sun begins to rise.

3- True Ending Start by pressing the last lever, then the second, and finally the third. This will prevent you from having to dodge the shelves.

When the screen is black, move forward and to the right without moving the cursor. When you can see, grab the key from the table, enter the code "4682" and put the key in the lock on the table. When the lights go out, go outside as quickly as possible until the sun begins to rise.