Roy aided Oliver in several dire moments, before he was given his mask, and later after being shot out of a plane, was given his full costume. In order to give him better protection.
His weapons are bow and arrow, batons, throwing arrows, throwing knives, and of course his fists.
Roy is drawn to Oliver in a way that most people can'T understand. Orignally he wanted to be like the arrow. He then wanted to prove he didn't need him. Now a days He sees him not only like a brother, but also as a father figure. He respects Oliver, but also is not afraid to challenge his authority or stand up to him.