Ghost Gown

From the Super Mario Wiki, the Mario encyclopedia
Professor E. Gadd wearing the Ghost Gown.

The Ghost Gown is one of Professor Elvin Gadd's many inventions, appearing in Mario & Luigi: Superstar Saga. It appears as a pale blue gown with a white collar at the neck. As its name suggests, the wearer transforms into a partially-visible "ghost."

E. Gadd introduces the invention in Starbeans Cafe, drawn by the scent of a new drink. Using the gown, he is able to become a "ghost". Luigi, having a fear of ghosts, sucks E. Gadd up with the Poltergust 3000.