With this character, Robbie poses as a dance instructor from "the most famous dance school in the world" in order to trick Stephanie into leaving LazyTown.
There is no selection process in the Dancing Dreams episode.
Instead, Robbie simply ducks out of view for a second and re-emerges as Sully Swingahip with his trunk in tow.
Robbie spends the entire episode outside of his lair until the epilogue.
During the epilogue, however, the disguise machine can be seen briefly in the background.
Its chambers contain (right to left):-
|Seson one: Rob U. Blind | Lazycus | The mailbox | Robbie's softball uniform | Sherlock Foams | Sportacus | The Birthday Fairy | Scotty the Scoutmaster | Dr. Rottenstein | Rottenbeard | The Dinosaur | Sir Rottenham of Robbington | The Rotten Kid | The gorilla suit | Soccerbot | Miss Roberta | Fordmil Meansbad | Santa Claus | The purple cow | Giant fruit and veg | Zobby|
|Season two: Johnny B. Badd | A purple bush | The Trash Man | Mayor Meanswell | The Ghost | The Snow Monster | Roberto the Great | The Shaking Cup operator | Rob R. Robley | The Purple Legend | Chef Robert | The gorilla suit (again) | Prof. H.R. Rottennen | The sticker vendor | The construction worker | Bob Wire | The Big Bad Wolf | Robbie's racing outfit | Sully Swingahip|
|Others: The aristocratic dress | The baby | The blue dress | The chicken | The court jester | Cowman | The crusader | Robbie's dressing gown | The nightgown and headdress | The silk clown | The white robe|