Delmona makes an appearance in Chapter 3: A Day Out in London. He is seen outside of Gressenheller University.
At Gressenheller University he is seen while Layton and his apprentice leave. He asks why he's here because Layton was on holiday. Later on in the game he is seen again. Layton and Luke meet him in the Future London inside of the Hotel Duke. Near the end of the game Delmona turned out to be Don Paolo in disguise, because he had to spy on Layton while he was hired by Dimitri. He loves his granddaughter so much he always gets her the best and brightest gifts.
Layton's Mystery Journey: Katrielle and the Millionaires' Conspiracy / Layton Mystery Detective Agency: Kat's Mystery-Solving FilesEdit
Delmone makes a brief appearance in file 10 of Layton's Mystery Journey: Katrielle and the Millionaires' Conspiracy / episode 26 of Layton Mystery Detective Agency: Kat's Mystery-Solving Files, giving Katrielle Layton permission to investigate inside Gressenheller for proving Ernest Greeves' innocence.
Last Specter Edit
Unwound Future Edit
Dean Delmona gives one of the puzzles in Unwound Future to Professor Layton and Luke. While they go to Gressenheller University he gives the puzzle "1/1000".
Dean Delmona gives Layton puzzle 23: "Choc-Full".
- Delmona gives the quest "Professor Layton Returns" in London Life.