What is Mr. Biggs you ask?
It's a giant building designed for fun! You can find just about everything to do inside this building. There's putt putt golf, mini grand prix racing, amusement rides, endless arcades, bowling, lazertag and more. Those are for the big kids of course, but for the little kids there's a giant portion of the building that was rebuilt and named Little Big Town. It has all of these little "shops" containing appropriate activities to do within them.There's a car shop
bakery, salon, music store, a gold mine and a ton of other things to do. 
There is also the 3 level foam factory (germ factory) that has a million or so foam balls that can get thrown, launched, and sucked in every which direction. It really is a lot of fun, even for the adults. There are Cannons and guns to shoot at people below you and above you. Giant vacuum's to suck up the balls into big baskets that dump every few minutes. Pulley's to send bags filled with balls up to the upper levels and so much more!