From 1971, primarily in the Bronx, he began writing graffiti, a term he despised and referred to as the “g-word”. He preferred the terms “style writing“ or “aerosol art“ and was adamant that the “g-word” was not to be used as he felt that it degraded the art. He was best known as the pioneer of “softies“— bubble-style letters that helped evolve simple tags to full-fledged artworks. Many innovations that became commonplace, like loops and arrows, are credited to him. His art varied from designing flyers for the first hip hop events, large canvas pieces to sculptures and was the first to create a large-scale, 6 foot high, three-dimensional aerosol brass sculpture which stood for many years in the Jacob Javitz Center. P.H.A.S.E.2 was also known for his collage artwork and collaborated with Supreme and designed the album covers for the record labels Rawkus and Definitive Jux as well as the logo for Tuff City. He was also a singer, rapper, DJ, dancer and founded the New York City Breakers crew. In 1982, he brought a group of rappers, dancers and artists to England and France, which was the first real exporting of New York hip-hop culture overseas. He was Art Director and a writer for the first graffiti magazine, International Graffiti Times (IGTimes) and in 1996, with the founder, released a graffiti history book, “Style: Writing From the Underground”.
Up until his passing, he continued to make art, selling privately and in galleries, including works on paper and robot-style sculptures influenced by his love of Japanese animation. At his death he had been in the early stages of a documentary project with Mr. Grey and a book about his fliers with the hip-hop historian Pete Nice.