Super Mario 3D Land - Scary Ghost at World 4-4

The World 4-4 at Super Mario 3D Land is just a Scary Ghost House, Nothing that would make kids get scared, Except the music.

BUT WAIT! There's something hidden at the end of the World 4-4...
Looks Like Nintendo wanted to add a bit of horror to his game...

Video by Japancommercials4U2