Hey, Luigi! While you’re at it…
Im sorry but what happens when he sucks up things with his vacuum?
In the Mansion games? Boss ghosts get turned into portraits. “Remember when you trapped me in a painting for all eternity? Yeah, good times.” ~King Boo in 2
In 2. they all get put into a holding tank, the Boos in a separate one. I forget if anything is done with the mook ghosts and other Boos in 1.