In 1998, Kuo and two other CCU graduates, Yang Mao-lin and Wu Tien-chang, formed the Handtoo Art Group, in order to defend two-dimensional art. Through their actions and their creative works, they stood stoutly against the cresting wave of three-dimensional new media.
1998 年，郭維國與文大學長楊茂林、吳天章等人合力成立「悍圖社」，立志為平面藝術發聲，以行動與作品，力抗立體新媒材的潮流大浪。