Tokyo and its surrounding areas provide an array of entertainment spots to serve the varied interests of its inhabitants, day or night. The latest fads are theme bars and restaurants for those seeking an unusual drinking or dining experience. Guys who were fascinated by Ultraman in the heady high-growth 1960s can lose themselves in nostalgia at Kaiju Sakaba, a Kawasaki restaurant-bar themed on the space monsters the hero battled in the sci-fi TV series, whose popularity with kids pushed its viewer rating as high as 45 percent.