Hugo (otherwise spelled as H.U.G.O.) is the Holographic User Guidance Operative for Braces 2.0. As well as being one of the main characters in Get Ace, he is also a main protagonist.
Ace braces' are controlled by H.U.G.O (Holographic User Guidance Operative) an annoying little computer hologram that is seen only by Ace though the customised lenses of his glasses. Hugo is a quick-witted, super intelligent genius who is always on hand to offer Ace his expert opinion - not that Ace always listens. But while Ace and Hugo can drive each other completely nuts, when the pressure is on they make an unbeatable team!