From a start door, go toward the left. An appearing wooden box will fall.
Swallow it and move to the left further.
You will find an appearing iron box falling down.
Use two boxes as a step and go up to the upper floor.
After that, go up to the further upper right floor with two wooden boxes nearby.
A warp door entrance is placed on the floor.
Let's enter it.

Pattern A (In case you came out from the warp door on the left of a ladder)
Climb the left ladder.
After climbed, you will see two wooden boxes on your both sides.
Swallow and release them to the right lower floor.
When you go down to the lower right, you can find two other wooden boxes.
Arrange these four wooden boxes under a short ladder on the middle of the floor and climb it.
There are a door and two wooden boxes at the upper floor.
When you move to the right, you can find a key behind the brick wall.
Pile up wooden boxes to go up to the upper to get a key.
There is a wooden box on the upper floor.
Drop it beforehand to the lower where a door is.
After got a key, return the way you've come.
Next, go up to the upper floor above a door and drop a wooden box to the lower left.
Then there are four wooden boxes near a door now.
Pile them up and go up to the upper floor on the left side of a door.
After that, drop two wooden boxes into a hole on your left.
Climb up from the hole by using them.
A goal door is here.

Pattern B (In case you came out from the warp door on the upper right edge of the stage near liquor)
Get a key in front of you and climb a brick wall by piling up two wooden boxes.
When you go up, there is a wooden box.
Swallow and release it to the lower floor.
There is a wooden box above a shop door too, so climb up there and bring a box down.
Then there are four wooden boxes near a door now.
Pile them up and go up to the upper floor on the left side of a door.
After that, drop two wooden boxes into a hole on your left.
Climb up from the hole by using them.
A goal door is here.

Pattern C (In case you came out from the warp door on the lower right edge of the stage)
When you move to the left, there are two wooden boxes.
Bring them near a warp door you've came out.
Pile them up to go up to the upper left bricks.
After that, climb a ladder and go up the brick stairs.
When you go to the left, you will find another warp door exit.
Climb the left ladder.
After climbed, you will see two wooden boxes on your both sides.
Swallow and release them to the right lower floor.
When you go down to the lower right, you can find two other wooden boxes.
Arrange these four wooden boxes under a short ladder on the middle of the floor and climb it.
There are a door and two wooden boxes at the upper floor.
When you move to the right, you can find a key behind the brick wall.
Pile up wooden boxes to go up to the upper to get a key.
There is a wooden box on the upper floor.
Drop it beforehand to the lower where a door is.
After got a key, return the way you've come.
Next, go up to the upper floor above a door and drop a wooden box to the lower left.
Then there are four wooden boxes near a door now.
Pile them up and go up to the upper floor on the left side of a door.
After that, drop two wooden boxes into a hole on your left.
Climb up from the hole by using them.
A goal door is here.
Climb up from the hole by using them.
A goal door is here.