Unagi is usually served broiled (Kabayaki) in Japan, very rich and tasty. It is high in protein, calcium, Vitamin A&B, and Japanese eats them when they need energy. I often find Unagi rolls at Sushi restaurants outside of Japan. (Price $$ to $$$)
Fugu (Blowfish)
Fugu is a fish that contains deadly poison, tetrodotoxin, and chefs need to be certified in order to handle them. It can be served in Sashimi, deep fried, hot pot, and so on. It doesn't have a strong flavor, but sure it tastes delicate and delicious. (Price $$ to $$$$$)
