Niles wears a pink cap, blue jacket, and red trousers.
Niles gives the following puzzles in Professor Layton and the Diabolical Box:
"Niles is just a regular kid who likes to play, but almost everyone left in Folsense is an adult. Since he has no one to play with, poor Niles just gobbles Belle Tart Seeds 'til his fingers turn orange. Duke is his older brother."