A stilt-walking headmaster wearing a Medusa-like powdered wig with white albino corn snakes chases visitors out of a classroom set up with exhibits on snakes and spiders.
Around the corner, a giant snake puppet with 10-inch fangs pops out of the wall spitting "venom" at visitors.
Soundtrack: "School's Out"
* Basement Lair
Leaving the nightmare world behind and returning to Steven's house, visitors enter a basement filled with spiders, including a giant spider hiding in the corner that looks like a human woman with eight female legs.
Around the corner, cocooned human bodies hang from the ceiling in a cobweb-strewn hallway.
Soundtrack: "I am the Spider"
* Black Widow
In the final scene, a 4-foot-tall Black Widow puppet reaches out at visitors with its articulated legs. But don't let down your guard just yet.
“There’s never just a final scare," Murdy said. "There’s always a final final scare and then a final, final final scare.”
Soundtrack: "Black Widow"
Halloween Horror Nights 2011 will include five other haunted mazes based on "The Thing," "The Wolfman," "Hostel" and "House of 1,000 Corpses" films as well as the La Llorona folk legend.
Halloween Horror Nights will run at Universal Studios Hollywood on Sept. 23, 24, 30 and Oct. 1, 7, 8, 9, 14, 15, 16, 20, 21, 22, 23, 27, 28, 29, 30 and 31.