The wearer of many hats has left a mark on Malaysia’s film industry as a self-taught artist, graphic designer, photographer, writer, director, actor, and, most notably, an animator. He is renowned for his creation of the "Sang Kancil" and "Silat Lagenda" animation series, which have had a profound influence on the nation's animation industry. As a result of his long-standing contributions, he has been dubbed "Father of Malaysian Animation."
With involvement in four feature films, two TV dramas, a music video, a documentary, and various short films, Hassan is not only a prolific creator but also an advisor and mentor to film and animation professionals and students.