Cool, let's make a compendium of dream monsters then.
The Gremlins: Demonic imp like creatures that hunt inside of a dense ant hill composed from a living forest canopy.
The tube masks: Honestly I didn't spend much time on these, in a rare moment of lucidity I managed to freeze the dream time and destroy them with a large fireball that took out the area. about nine feet tall five feet wide arms reaching down to the knees, and composed of darkness with breathing masks covering the face.
Mosquito riders: shadow beings that ride the giant mosquitos of the dream realm. the mosquitos are about the size of elephants and swoop down from the sky picking people. Travel in clouds of several hundreds.
the face stealer: From BSOM, acronym for book title. A being that kills it's victoms and imprisons them in a mask constructed from their bodies. Whenever one wears it's mask they turn into a carbon copy of the victim, and have access to their memory and mannerisms...It's true form is a writhing tentacled cancourous bulging mound of fanged flesh.
It just wants a hug.The raptors: recurring dreams every now and then. Basically undead velociraptors with armored skin, metal claws, that sometimes breath fire.
The lost: Similiar to the chimera's mentioned by zale, basically mutants that reside in an underground mall structure with floors composed of a foot of blood...that apparently does not sell bullets ANYWHERE!!!!!!!!!
The tree: a sentient root like creature which inhabits the maze/mall. It's pollen alters physics and takes over the minds of those within it...when I met it water was filling half of the classrooom it was in...from the cealing...I mean it the floor and three feet up from the floor was dry air. The ceialing and about six feet down from it was a pool of water....I accidentally tought it how to construct viruses so look out for that.
Demos: Their immortal, their demonic, they look like semi rotting human coprses, they appear in thousands at a time, and they mock you before killing you.