Marth is quite the confident and cocky swordsman. He loves to taunt Roy because he feels that he's better than him...or maybe he's pushing him to better him in combat. The motive is unknown, but he does get a kick out of taunting his opponents and knowing their every move. He may look like the one who cheats, but he has a strong sense of fighting fair and the rules. But, if someone doesn't play by the rules, he can play dirty when the time needs to be.