Simplify the following text for a Grade 8 native English-speaking person.
Original: In Japan , sushi is sometimes sold in â conveyor-belt shopsâ called kaiten zushi , where plates of sushi are put on a moving belt that passes by the customers .
Simplified: In Japan , and increasingly abroad , sushi is served kaiten zushi ( sushi train ) style . Color coded plates of sushi are placed on a conveyor belt ; as the belt passes customers choose as they please .