From Black Mesa: Wiki

The Bullsquid as it appears in Black Mesa.

Overview

Bullsquids are aggressive, bipedal, carnivorous aliens from the borderworld of Xen. They are sandy brown in coloration, with spots covering the top surface, and have tentacle-like protrusions surrounding their mouth. They also have two glossy eyes and a hooked tail, which is extremely damaging when whipped around.

Behaviour

When attacking prey or an enemy, bullsquids will punt and tail-whip their target in close quarters, and spit a powerful toxin at a distance. They attack prey with a single-minded determination, and seem to only be motivated by their hunger and drive to kill for food. Inside the Black Mesa Research Facility they can often be found near or in radioactive materials.

Bullsquids will attack any nearby headcrabs and zombies.

Media

Screenshots

A render of the Bullsquid.	Bullsquid's acid will stain Gordon and his weapon if he's hit.	An old shot of the bullsquid in-game	An old in-game screenshot of the player encountering a pack of Bullsquid in Blast Pit.
Bullsquid acid on a wall.

Videos

Redesign History

An early alpha version of the Bullsquid recycled the antlion worker's particle effects. However, the final Bullsquid features completely custom particles and models for it's spit attacks [1]. The current version, not depicted on video, has a main ball with few small balls followed by a spray [2].

The Bullsquid model and textures were made by Jeff Smith. Animations by Nathan Ayres.

The Bullsquid model wireframe.

The unskinned model.

512x512 Normal diffuse & specular textures.

Various splashes of Bullsquid acid.