In this guide, we will go over the entire walkthrough on beating level 4-11.
First, pick everything that you will need to escape from the room.
1. The metal bar
2. Obtain the gears inside the tool box.
3. Obtain the paper note inside the shelf area.
4. Pick up the battery.
5. Pick up the screw driver on the floor.
8. Check the clues on top of the door. You will see the following information. The puzzle is simply taking out of the lines as described. There is no complicated mathematical problem with this.
9. Now observe the clues on the door. With the same logic, you can come up with the final answers to the number lock.
Speed Pass Note
Finish the pulley setup as required in this game. Then simply type in 6539 to quickly escape from the room.