FULL TITLE:
I will make a Famitsu NSMB hack sometime in the future with custom levels and levels featured in the magazine among others

Backgrounds and tilesets featured
E3 2005:
Underground
Castle
Desert
Boss Room

DS Conference 2005:
Grassland

Famitsu 2005:
Volcano Overworld
Bonus Room
Sky
Underwater
Volcano Cliffs

Custom:
"Ancient" (replaces jungle)
"Factory/Machine" (replaces mountain)

Final:
Pipe Maze
Snow
Spooky Overworld

Leaked:
Beach
Boo House