 E. Gadd tells Luigi that he saw Mario heading towards the mansion, but has not seen him since.Upon learning that Mario is Luigi's brother, E. Gadd entrusts Luigi with his ghost-hunting equipment, including the Poltergust 3000 vacuum cleaner and Game Boy Horror communication device, and Luigi re-enters the mansion to look for Mario.As Luigi explores the mansion, he discovers that it was built by King Boo to shelter the now-freed portrait ghosts, ghosts whom E. Gadd had previously captured and contained in paintings with a device dubbed the "Ghost Potrificationizer", and created the false contest to lure the Mario Bros. into a trap.