This is a subject I've been deeply involved in since I decided to finish my GamesHound database.
I have more than 12,500 worldwide locations registered from 15 different games locator databases.
Thanks to Google Places, I have confirmed that more than 100 USA malls that are listed have NO entertainment venues at all as we know them! In which case it doesn't even show up.
But there are a number of malls that still have good places in them! I would love to check out that new bowling alley/arcade up on the high floor of the Mall of America in Minnesota! A number of TILT arcades are still in operation in malls! (Mostly in California, though!)