The guryon, a fighting kite of the Philippines, is made with protruding spikes that cut and tear the paper sail of its opponent. Another kite form similar to those found throughout the Southeast Asia area, the guryon has distinctive elliptical wings and is made with bamboo and inexpensive tissue paper. Drachen has attempted to conduct a survey of the kites of the Philippines with Orlando Ongkingco, but completion has been difficult due to political unrest.