From a start door, go toward the right as long as the second ladder.
Climb it to the upper floor where a door is.
There is a wooden box on your right and drop it from the right-side edge.
Go to the right and get a poison.
Drop a box placed beside a poison to the right-side and go forward to the right.
Climb a ladder on the right edge and go up to the upper left floor by using two boxes.
Drop two boxes to the lower left floor from the left-side edge.
Make stairs with seven wooden boxes to get to the first upper brick floor.
After you got to the upper floor, many boxes will fall so run through at a stretch.
Pile up wooden boxes well to get a key placed on the upper left edge.
After got a key, go up to the upper flat floor where a liquor and five wooden boxes are.
Go toward the right and swallow a wooden box.
Then go down to the lower with keeping swallowing to make a step to the right side.
After that, go up to the upper right to enter a goal door.