|Game||Newer Super Mario Bros. DS|
Circling Boo Buddies
|Previous level||(4-6) Grimoire Grounds|
|Next level||(5-1) Snowfield Plateau|
Derelict Schooner (or World 4-) is the ninth and final level, as well as airship of Pumpkin Boneyard from Newer Super Mario Bros. DS. It takes place in a sunken airship, much like Shipwreck Galleon from Newer Super Mario Bros. Wii.