They also have a lot of the snack foods and specialty things you'd normally find down at Uwajimaya, including Pocky and Ramune and Calpis and Milkis and taro-jelly candies, and so on. They also have fresh (as in 'live, swimming around in a tank') fish, various specialty produce, and so on.
They ALSO apparently have various other ethnic foods -- including Russian, Arabian, Indian and South African -- in much smaller sections of the store, though my dad and I didn't investigate too deeply because we'd already been there for a while. Anyway, won't be my main shopping place, but if you swing by the Oak Tree mall, it might be worth a look. It's certainly a UNIQUE market, to say the least!