It's the brain stealing alien from Lovecraftian horrors, the Migo! This is my own custom take on the creature, built for a specific module I've been working on, but feel free to use it in your own campaigns as well! This is not the normal insectoid interpretation of the Migo, but rather my own a deep sea themed variation.
This model has been scaled to a 25mm standard and ready for your D&D, Pathfinder, Chaosium campaign!
For my particular game:
A parasitic Cephalopod like entity, it is roughly the size of a human, but can compress to fit inside of a human cranium. It is quick moving, agile and highly sentient. It speaks through telepathically, but can also communicate via its possessed meat puppets.
• Can break open doors via mental force.
• Can thrust off of solid objects accelerating and can move very quickly.
• Can grasp players and if not dislodge can take them out of play via possession.