The basic idea here is parallel timelines: If you rewind a timeline and Tim touches a green platform, then fast forward, the original timeline's actions still occur. However, Tim's location is not updated. In this level, we create 5 separate timelines:

• The first one flips the lever to lower the ladder
• The second uses the bottom of the ladder to grab the second piece
• The third uses the top of the ladder to grab the key and lower the platform, which pushes the key down, into the path of
• The fourth one which uses the key to open the door and grab the third piece, which is still credited to
• The fifth and final one, which exits the room.