High Quality Content by WIKIPEDIA articles! T gy also known as ushi-zumo or Bull sumo, is a spectator sport native to Ryukyu Islands of Japan, especially in the Okinawa Prefecture. It is also held in other regions of Japan, such as Iwate Prefecture, Niigata Prefecture, Shimane Prefecture, Ehime Prefecture and Kagoshima Prefecture. Although sometimes known to Westerners as "Okinawan bullfighting", it is drastically different from the Spanish or Portuguese style of bullfighting where the matches are between a bull and a human, with blood being spilt. T gy has more in common with the northern region of Portugal's sport of chegas and the Swiss sport of cow fighting.