From a start door, go to the left as long as a ladder beyond a shop door.
Take much care of a trap hole on your way.
Climb a ladder, and move toward the right because a goal door is placed on the upper right in the stage.
You will see a ladder on the right edge.
Climb it and then go to the left.
There is another ladder; climb it.
After climbed, move to the right.
You can find another ladder on the right edge.
Climb it in a hurry because it's a vanishing ladder.
After that, go along to the left and then you can find a key.
In order to get a key, you have to take away wooden boxes but never break all three.
You should save at least one wooden box for stage clear.
Bring the remaining box to the right and make a step to go up to the upper right bricks.
A goal door is placed on there.