Bulma is the arrogant girl genius of the Z crew. Being the only child of the richest man on Dragon Ball Earth has DEFINANTLY gone to her head. She is spoiled and most times annoying, but her skill with machines comes in really handy alot of times. She created the Dragon Radar, Trunks's Time Machine, and the machine that made Vegeta go SSJ4. She has flirted with almost every character in the series (including Porunga, the Namekian dragon). But when its all said and done, she help the crew out in areas that none of them would be adequate at--even though she is so annoying that you just wish Vegeta would blast her and get it over with!