Toy Terror: Batteries Included
The walking toy robots shown in the Goosebumps trailer look fairly generic, but are most likely to be from the Give Yourself Goosebumps book "Toy Terror: Batteries Included". This reader-driven tale takes place inside the Hasley Toy Factory, where the toys come to life and aren't nearly as friendly as the gang from Toy Story.
This severe looking man with amazing eyebrows is Count Nightwing, the antagonist of "Vampire Breath". Nightwing can be summoned by breaking open a bottle of Vampire Breath, which allows him to travel through time. If you think that sounds bad, you don't want to know what happens when you break open the bottle of Werewolf Sweat.
The Werewolf of Fever Swamp
Speaking of werewolves, one of them gets quite a lot of screen time in the trailer, but it's unclear which of the werewolf-themed Goosebumps books it's from. In addition to "The Werewolf of Fever Swamp," there are also titles like "The Werewolf in the Living Room," "Werewolf Skin" and "Full Moon Fever". Perhaps it's an all-purpose lycanthrope.
When the Ghost Dog Howls
The eponymous ghost dog of this HorrorLand book may or may not appear in the Goosebumps movie, but the cheerfully-named Murder the Clown does. Murder appears in multiple books in the series, and can be seen standing alongside his fellow evildoers in the Goosebumps trailer's big group shot.
You Can't Scare Me!
The huge lurching bog monster in the trailer seems to be taken from the pages of "You Can't Scare Me!". This book is about a group of friends attempting to frighten a girl in their class who doesn't appear to be scared of anything. They don't manage to make her scream, but they do discover that mud monsters are real.
Expect a lot more infamous Goosebumps monsters to join the party when the movie hits theaters. Will Stine and co. encounter the evil camera from "Say Cheese and Die"? The monochrome parallel dimension of "The Haunted School"? Will Monster Blood play a part in the proceedings? The possibilities aren't quite endless, but there are an awful lot of them.
Have you spotted any more classic Goosebumps monsters and references in the trailers and marketing so far? Let us know who you've seen - and who you're hoping to see - in the comments.
Goosebumps hits theaters on October 16th, 2015.