Lalaport shopping mall. There are a few Lalaports in the Tokyo area: in Toyosu; in Ebina;, in Tachikawa; in Funabashi; and, in Yokohama. I've been to two of them. The Lalaport in Toyosu has a very educational Kidzania children's occupation theme centre. Maybe some of the others do, as well. I don't know.
The traditional Japanese shopping area is the familiar neighbourhood "shotengai" shopping street. They can range from fairly small to fairly huge, but they are always within walking distance of any home in any neighbourhood. But Lalaport is a total copy of the American shopping mall concept. Nothing traditional about it. You travel a certain distance to get there and once you're inside you're overwhelmed with the stores, the space, the crowds, etc. Maybe they were built expressly to address the phenomenon of Japanese suburbanization. The shopping mall is a very suburban concept.