Killer Doll

The Killer Doll, also called a Marionette, is an enemy in the Castlevania series. It is a demonic puppet from Hell possessed by the spirit of a mass murderer which wanders in search of living flesh.

Description
The Killer Doll may initially seem like a lifeless and harmless female figurine lying on the floor. Once approached, however, it will immediately become evident she has been possessed by an evil spirit and will levitate toward the hero while disturbingly rotating her head and with her limbs hanging flaccidly, giving her an eerie aspect.

Making contact with them generally inflicts Curse status, although they also usually drop items that can cure this ailment.

Castlevania: Aria of Sorrow
They take a more childlike appearance in this game. They attack by floating slowly towards Soma, trying to collide with him, and are very easy to kill. Their in-game description seems to be inspired by the character Chucky, a doll possessed by the evil soul of a serial killer, the recurring antagonist from the movie Child's Play and its sequels. The Killer Doll is similar to the Lightning Doll, which is similarly possessed.