Despite living in the desert, Yamcha has convinced himself that he is a dreaded pirate. He's a very hammy and unstable individual, but his physical prowess means that nobody except his infinitely smarter batman, Alfred. His crush on Bulma is his main motivation throughout the series, going to any lengths except going up to her and asking her out. His plans typically involve such things as tracking devices and rocket launchers, so they don't usually go as well as he'd like.