Editing World 4-Ghost House (New Super Mario Bros.)

{{italic title|id=yes}}
{{level infobox
|title={{world|4|ghostn}}
|image=[[File:4-GH NSMB.png]]
|code=
|world=[[World 4 (New Super Mario Bros.)|World 4]]
|game=''[[New Super Mario Bros.]]''
|limit=400 seconds
|before_alt=[[World 4-A (New Super Mario Bros.)|<<]]
|before=[[World 4-4 (New Super Mario Bros.)|<<]]
|after=[[World 4-5 (New Super Mario Bros.)|>>]]
|secret=[[World 7-1 (New Super Mario Bros.)|**]]
}}
'''{{world|4|ghostn}}''' is the [[Ghost House]] of [[World 4 (New Super Mario Bros.)|World 4]] in ''[[New Super Mario Bros.]]''
==Layout==
To start, Mario should step onto a striped platform that takes him past a wall. The first [[Star Coin]] can be found by going up past the blocks and right to another striped platform where he will find the coin above it. After the platform, Mario should press the [[! Switch]] and go through the door, avoiding the [[Balloon Boo]] along the way. To get the second Star Coin, Mario should press another [[Wall Jump]] on the first red blocks he sees and go up. The third Star Coin is in the Secret Exit. Then, the player needs to jump on the blocks, past the first door (if Mario goes through the first door, it will take him back to the start of the area), and into the second door. This will take Mario outside, to the [[Goal Pole|pole]].

==Red-flag exit==
To access the [[Goal Pole|red-flag exit]], the player needs to be [[Mini Mario (form)|Mini Mario]]. When Mario reaches the area with the second Star Coin, Mario should get onto the pipe, not entering it. Then, he should Wall Jump on the pipe, reaching a faraway door. By continuing to Wall Jump and by going up, Mario will reach the third Star Coin. Going through the door takes Mario to the red-flag exit.

==Star Coins==
*'''Star Coin 1''' - Mario should enter the door at the beginning of the level and hit the [[? Switch]]. Four blocks attached with strings will drop from the ceiling, and Mario should hop on top of one of these and when it goes up, he will be transported to the first Star Coin.
*'''Star Coin 2''' - Using some red blocks, Mario should Wall Jump off them to reach a higher area and where the Star Coin is found.
*'''Star Coin 3''' - Mario should jump off the aforementioned pipe onto the above platform in his Mini Mario form. He should keep wall jumping until he finally reaches the Star Coin.

==Enemies==
{|border=2 cellspacing=0 cellpadding=3 style="border-collapse:collapse"style="text-align: center"
|-
!Name
!Image
!Amount
|-
|[[Balloon Boo]]s
|[[File:NSMBDS Balloon Boo Sprite.png]]
|5
|-
|[[Boo]]s
|[[File:NSMBDS Boo Sprite.gif]]
|6
|}

==Level map==
{{wide image|NewSuperMarioBros-World4-GhostHouse.png}}

==Names in other languages==
{{foreign names
|Ger=W4-Geisterhaus
|GerM=World 4-Ghost House
}}

{{NSMB levels}}
[[Category:Ghost Houses]]
[[Category:Levels with a Secret Exit]]
[[Category:New Super Mario Bros. levels]]
[[it:Mondo 4-Casa stregata (New Super Mario Bros.)]]