What type of art is this called ?!?

http://www.google.com/imgres?imgurl=http://www.globalnerdy.com/wordpress/wp-content/uploads/2009/04/katamariesque-win-7-desktop1.jpg&imgrefurl=http://www.globalnerdy.com/2009/04/26/windows-7s-groovy-desktop-backgrounds/&usg=__bvD7y0vFR2m06vFLWUvUpsZKy8Y=&h=375&w=600&sz=65&hl=en&start=0&sig2=_tMjx-ig7ahh1caHr3JqWg&zoom=1&tbnid=XbMclJx6PZvhxM:&tbnh=121&tbnw=171&ei=eWweTtebJsm20AHt-fS7Aw&prev=/search%3Fq%3Ddesktop%2Bbackgrounds%2BGizmodo%26hl%3Den%26biw%3D1366%26bih%3D673%26tbm%3Disch&itbs=1&iact=hc&vpx=711&vpy=229&dur=1987&hovh=177&hovw=284&tx=139&ty=68&page=1&ndsp=25&ved=1t:429,r:10,s:0&biw=1366&bih=673 I have been look around for the name of this type of drawings and i can't find much thanks for your help in advance