Clock Tower: Rewind

You first get the rope in the room where you get the pesticide and black robe from a room upstairs near where the bird nest was left of the West Building lobby. In the West Building on 2nd floor hallway you need Scissorman to be chasing you, gotta run from left of hall with red curtains towards the right of the hall where there's usually that hole with a plank at the wall along with a green statue. Jennifer just jumps across that gap too that's next to the green statue. Jennifer only jumps across gap if Scissorman was chasing you by the way. After Scissorman falls into the hole, you can then tie a rope onto green statue after that and climb down the rope too. You can only tie the rope onto statue if you haven't placed the wooden plank as a bridge.