. "Hamilton Yokota, also known as Titifreak, is a Brazilian yo-yoer, member of Duncan Crew World-Wide and artist. Titifreak's younger brother is Rodrigo Yokota who goes by the name Whip. He is a Brazilian Yo-yo Association director and a judge for contests held in Brazil. Hamilton is also a well known graffiti artist and his work is recognized around the world. See some of his art in the following link:"@en . . "Hamilton Yokota, also known as Titifreak, is a Brazilian yo-yoer, member of Duncan Crew World-Wide and artist. Titifreak's younger brother is Rodrigo Yokota who goes by the name Whip. He is a Brazilian Yo-yo Association director and a judge for contests held in Brazil. Hamilton is also a well known graffiti artist and his work is recognized around the world. See some of his art in the following link:"@en . "Hamilton Yokota"@en .