In room 2, you go to the shelf to pick up the brown color, and then proceed to the area of the window, zoom into the window and get the window blind handle.
At level 2 there is a dressing table, you get there. Zoom into the pot on top of the dresser, pick up the long saw blade sticking out of the pot.
Press the window blind handle twice to zoom into it, now press the long saw blade and press the handle to combine them.
Now press the brown handle and press the almost complete hand saw to combine them, then the complete hand saw to cut the lock off of the door, and the door will be open level 2.
Now continue to the 100 rooms beat level 3, or back to the 100 Rooms Beat Level 1