You start to enter the funhouse when the woman stops you "You have to remove your shoes before entering."
Hmm, there must be an inflatable or ball pool. You remove your shoes and socks and enter the funhouse barefoot.
Passing through the clown mouth you find yourself in some kind of crooked room. In front of you are what look like funhouse mirrors. To your left is a long corridor ending in a doorway. To your right is a slide, leading down into darkness.