This is a kind of indoor theme park.
The theme is "gyoza" but I couldn't find a good explanation
for gyoza in is a kind of meat dumplings wrapped with thinly
spread flour paste.
you can see what they look like at the link below (it may heavy because they are thumb nails)

Anyway, there are countless kinds of gyoza - they are different
from shop to shop, from home to home.
So many gyoza, so many taste : )

In this theme park (actually it is not a very big place) you can
visit many famous gyoza shops from one to another.
Each shop is small, but it is fun to stroll the area holding a glass of beer one hand
grabbing the guide map the other and choose which one to eat next!