bills itself as Baltimore's only rotating sushi bar. The concept is simple, if at first unintentionally amusing: You sit at the bar with your napkin, chopsticks, soy, wasabi and ginger. The sushi-tenders roll up various concoctions, cut them, usually into quarters, plate them, and place them on a shiny silver conveyor belt that chugs along the inside perimeter of the bar. And as they pass, you reach up and pluck down plates that look right for you. No menu. No wondering what it might look like. The plates come in six colors that correspond to the price of each offering: two colors at $2.95, two at $4.95 and two at $5.95. At the end of the meal, they add up the colors for the grand total.