The fugu of blow fish is a poisonous fish a bit like a toady or a puffer fish. These fish are deadly if prepared the wrong way, chefs need to have a licence to serve the fish and tasters need to sign a disclaimer in most restaurants. The gizzards (which are usually the best stuff in Japan) have deadly poison and if contaminated with the meat will kill the eater very fast – the poison paralyses the muscles causing asphyxiation. Due to the nature of the dish it is very expensive and many people die every year after eating contaminated Fugu. It was illegal to serve the fish up until 1958. For anyone interested there is a Fugu museum in Osaka. Fugi restaurant can be found by looking for the giant fugi decoration at the front of the premises.