 In his prime, he was a very talented striker with great dribbling skills and goalscoring ability, who was also capable of creating chances for teammates.Amoroso started his career at homeland club Guarani FC at 1992.In July 1992, he was loaned to a Japanese outfit Verdy Kawasaki (J.League Division 1), winning two J-League titles, and returned to Guarani FC two years later, finishing the 1994 Campeonato Brasileiro Série A as the season's top scorer.