Aeon Mall Tsukuba (Japan) is the city's classiest and largest shopping mall. The mall houses a range of stores, offering a variety of goods at different price points.
The shops are well laid out and then there is this large supermarket where you could shop for everything you need for yourself and your house. If you are stationed in one of the nearby airport hotels, Aeon Mall is a solid place to visit. In fact, there is bus service from various hotels to this mall.
There is a variety of restaurants too, and of course movie theaters and a 4D theater.