About Us Info

Flabbergast is the newest indoor family fun center for play that offers a child electronic security system as well as daily sanitizing on ALL equipment!

Flabbergast is the ideal environment for parties of all sizes, and our doors open to walk-ins as well.  Open play, all day, every day!  We are located at W248 N5250 Executive Drive, Sussex WI 53089. Located conveniently at Hwys 164 and K in Sussex, just a short drive from Milwaukee, Brookfield and Waukesha.

Bounce and Climb

Flabbergast boasts giant inflatables, colossal slides and a huge climbing obstacle challenge with a triple slide!


Perfect for anyone who loves arcade games-Flabbergast offers 50 games for all ages!

Flabberlicious Café

Enjoy a snack at Flabbergasts’ café.  From hot dogs to pretzels to pizza and specialty coffee drinks, the café is sure to please all!  Click Here for our Menu

Flabber-flop Lounge

Come join the fun with your toddler in this room dedicated for children 4 and under!  Small inflatable, toddler friendly slides, playhouse and toys!

Outside Food Policy

No outside food or drinks are permitted by Flabbergast.


  • Signed waivers and socks are required to play.
  • All children under the age of 18 must be accompanied by an adult.
  • Parents are required to stay with children, no drop offs please.
  • In order to assure a safe and pleasurable experience Flabbergast staff enforces  a strict code of conduct.