While he looks composed and suave, Gregorio is the crazy and frenzied Gravilian warrior of the game. Known as the second strongest warrior of the Gravillian Empire, Gregorio prides his capabilities to the point of obsession. He loves beauty and cries out to God in the Japanese script. His Gitaroo is a pipe organ that he conducts to play from afar. Gregorio is said to have built the Great Cathedral around it to support his weapon, calling upon miniature angels to assist him. A fan on the official website asked why he screams, "Mama----!", but they weren't given a direct answer. It's implied that the cry was done to smash the stereotypical impression of "good-looking" characters.