Unfortunately the whole Dragonball Z craze completely passed me by, but I know many kids who still love the Manga cartoon/game/toys, or whatever it is.
This cellphone wallpaper features the character Goku, is described as an odd 'monkey-tailed boy who practices martial arts and possesses superhuman strength'. He sounds like he might be quite a tough-nut and judging the picture here, he is.
It's a dynamic picture due to the angle at which Goku is shooting upward towards the screen and you get a good impression of motion such is the quality of the drawing. The gradiated orange background is fairly subtle, meaning that your phone's icons still show up well.
If you like Dragonball Z then you'll love this download.