Dreamworm

History
The butcher of Yorkville was once invaded by a Dreamworm, which was defeated by Ace.

Phantom of the Nightmare
At night, a Dreamworm attacks Hayley in her bedroom, invading her and sending her into her deepest, darkest nightmares.

Later, when Ace, Gwen and Mark enter Hayley's nightmare to extract the Dreamworm, the monster retaliates by showing Hayley her deeper and darker nightmares, including one in which Jake is dead.

The Dreamworm manifests in Gus's form and plays on Hayley's fears that Jake will never want her. However, Hayley's revelation that the Dreamworm's species can never have a happy life like Hayley gives Hayley the power to expell the Dreamworm from her mind.

However, the Dreamworm, apparently having not learned its lesson from this defeat, attempts to invade Jake instead. Felix throws a circuit containing an Electromancer at the Dreamworm, causing the two monsters to fuse and destroy theirselves.

Appearance
The Dreamworm resembles a blue toad about the size of a dog, with jagged and cracked teeth, and milky white eyes which turn scarlet when angry or frustrated.

Special Abilities
A Dreamworm can attack and invade a human host. Once it does, the host enters a coma-like sleep, and is forced by the Dreamworm through their deepest, darkest nightmares.

Weaknesses
It is shown that if a Dreamworm is merged with an Electromancer, the two monsters will destroy theirselves.