{{Enemy Infobox
| image=FileBullsquid hl1.jpg|250px
| name=Bullsquid
| affiliation=Xen
| type=Wildlife 
| health=*40 (Easy, Medium)
*120 (Hard)
| weapons=*Toxic spit
*Tail whip
| entity=*monster_bullchicken (HL)
*npc_bullsquid (HL2) (cut)Playable Half-Life 2 Beta|''Half-Life 2'' Beta files
| designer=Ted Backman''Half-Life 2 Raising the Bar''
{{Quote|Why, just look at those peculiar markings...|Black Mesa scientist|Half-Life}}

'''Bullsquids''' (Taxonomic designation ''Gastropolypus toxophlegmata'',http//web.archive.org/web/19990221194558/http//ogr.com/specials/monsters/bullsquid.shtml Half-Life Monster of the Week Feature on OGR.com or "Phlegm-shooting Many-legged-mouth") are highly aggressive, bipedal creatures that appear throughout the Black Mesa Research Facility due to the dimensional rift caused by the Resonance Cascade. Bullsquids are able to survive, if not thrive, in environments that are unfriendly or even toxic to humans, including sewers and pools of radioactive chemicals or biological waste. On Xen, Bullsquids are found drinking from Xen Healing Pool|Healing Pools.

FileBullsquids drinking on Xen.jpg|left|thumb|200px|Two Bullsquids drinking on Xen, as seen during the Resonance Cascade, with a Protozoan orbiting behind.

The body of a Bullsquid is vaguely similar in appearance to that of a small Theropod, with two short, muscular legs and a thick tail that tapers to a point. The thorax abruptly joins the creature's head with no neck or other visible separation. A typical specimen stands roughly one meter tall and about two meters in length. Two slit-pupiled, black and glossy eyes are mounted on either side of its head. The tail had a hooked claw at its tip, which explains the large amount of damage caused by the Bullsquid's spin attack.

The Bullsquid's most striking feature however, is a collection of bright red, WikipediaCthulhu|Cthulhu-esque, tentacles surrounding its mouth and allowing it to grasp prey. The Bullsquid can also charge an opponent with surprising speed and force; these two attributes are likely the cause of its portmanteau name.

The Bullsquid's overall coloration is roughly comparable to that of a spotted cat its skin is sandy brown and its upper surfaces has dark spots. The creature's skin appears to be slimy, similar to that of a terrestrial WikipediaAmphibian|amphibian such as the WikipediaFrog|frog.

Like most of the creatures found on Xen, Bullsquids are studied in Black Mesa's Sector E.

==Behavior and skills==
FileBullsquid headcrab attack1.jpg|right|thumb|200px|Bullsquid gibbing a Headcrab with a tail swing.

The Bullsquid has an array of offensive capabilities. They display a very territorial disposition, as they have often been seen attacking other creatures and even members of their own species. They viciously attack Headcrabs, not stopping until all Headcrabs in their sight are eliminated, while they do not harm Houndeyes. They however do not attack, even when attacked themselves, when encountered during the Resonance Cascade in ''Half-Life'' and in the same map in ''Opposing Force''. They are drinking from a Healing Pool both times, however, so it is likely that they are simply not aggressive while feeding or drinking or that they cannot see the player somehow.

At close range, a hostile Bullsquid will either maul its victim with its teeth, or suddenly spin around, delivering a powerful strike with its tail, often causing gibbing. At long range, the Bullsquid is able to spit a toxic, bile-colored substance from its mouth, like the Antlion Worker, the Archer or the Charger (Xen creature)|Charger. While not particularly accurate or fast, it causes moderate damage, even at very long range.

Eli Vance's leg was lost when he was attacked by a Bullsquid while helping Isaac Kleiner climb over a barrier to get into a Combine city.''Half-Life 2 Prima Official Game Guide''

==Behind the scenes==
FileEarly bullsquid.jpg|right|thumb|200px|Second, yellow version.

*The Bullsquid is a reminiscence of a creature originally created by Chuck Jones for ''Quiver'', the "Land Squid".FileQuiver Land Squid.jpg
*The Bullsquid was originally called "Bullchicken". It is still referred to as ''bullchicken'' in the console (i.e. "monster_bullchicken").
*The very first Bullsquid was white. Its second iteration was a bright yellow.

*Bullsquids only attack with their tail when its objective is very wounded.

*In the chapter Lambda Core there is a bullsquid in an observation case, when the case is opened the bullsquid remains idle and will not attack unless it is attacked first.

*The Bullsquid was originally to appear in ''Half-Life 2''. Like the Houndeye, also cut from ''Half-Life 2'', it was to be glimpsed during the original train ride to City 17 and appear in the Canals. It can be found in playable Beta, in the map "d1_canals_02", although the http//developer.valvesoftware.com/wiki/Sprite sprite of its toxic spit, now appearing green, does not show properly.WC mappackPlayable Half-Life 2 Beta|''Half-Life 2'' Beta

*In Half-Life 2, its skin color was changed to a deep maroon, while another alternate texture made them pale green.

*A slideshow revealing the events between ''Half-Life'' and ''Half-Life 2'' was to be shown to Gordon at Eli's lab. In one of the images, Bullsquids were seen chasing a family from a suburban house.

*In the playable Half-Life 2 Beta|''Half-Life 2'' Beta texture folder for the Bullsquid can be found a texture file named "FileNewBullsquidSheet.jpg|NewBullsquidSheet.vtf", which is actually an alternate skin for the Ichthyosaur. It is also signed by Ted Backman and dated 2003, in his stylized signature.

*According to series' writer Marc Laidlaw, it still exists in the ''Half-Life 2'' continuity, being "around here somewhere".http//www.halflife2.net/forums/showthread.php?t=114535 Marc Laidlaw Vault on the ''Halflife2.net'' Forums

*The death animation of the Bullsquid has changed from Half life Day One. The original animation displayed the Bullsquid as flipping over, similar to the headcrab, and emitting a cry. (This reveals that a Bullsquid has a white underbelly.) In the retail version, the animation shows the creature as struggling and then collapsing.




FileQuiver Land Squid.jpg|Concept art for ''Quiver'''s "Land Squid" concept. 
FileBullsquid concept.jpg|Concept art for the first, white Bullsquid. 
FileBullchicken white scientist run.jpg|White Bullsquid chasing a scientist.
FileBullchicken white.jpg|First, white version.
FileBullchicken white close-up.jpg|Closeup with red Headcrabs in the back.
FileBullsquid yellow hq.jpg|High-res render of the yellow Bullsquid model.
FileBullchicken smg.jpg|Battle with yellow Bullsquids.
FileBullchicken smg2.jpg|Ditto, after a grenade explosion.
FileBeta houndeye bullsquids.jpg|Houndeye and yellow Bullsquids in the Beta Black Mesa. 
FileBullchicken swim.jpg|Swimming yellow Bullsquids. 
FileBullchicken underwater.jpg|Ditto.
FileBullsquid swimming closeup.jpg|Ditto.
FileBullsquid swimming aiming.jpg|Ditto.
FileBullsquid half submerged.jpg|Ditto.
FileYellow Bullsquid cornered.jpg|Yellow Bullsquid.
FileYellow Bullsquid spitting.jpg|Ditto, spitting.
FileBullsquid guard.jpg|Yellow Bullsquid eating Black Mesa employees. 
FileScientist bulls.jpg|An early scientist model with a yellow Bullsquid and a dead Headcrab in the back.
FileBullsquid early yellow model.jpg|Hi-res version of the retail model.
FileBullchicken eating scientist.jpg|Early retail version.
FileEarly Bullsquids freezer.jpg|Ditto.


FileBullsquid first.jpg|Bullsquid in Black Mesa.
FileBullsquid headcrab attack2.jpg|Bullsquid spitting on a Headcrab.
FileBullsquid headcrab attack3.jpg|Bullsquid about to kill a Headcrab.
FileBullsquid Xen Op4.jpg|Bullsquid drinking on Xen in ''Opposing Force'', in the same map as in ''Half-Life''.
FileOf bullsquid pond.jpg|Ditto, larger view.
FileBullsquid hd model.jpg|The HD Bullsquid.
FileOf4a2000450.jpg|Bullsquid being studied.

===''Half-Life 2'' (cut)===

FileBullsquid beta.jpg|The Half-Life 2 Beta|''Half-Life 2'' Beta red Bullsquid model.
FileBullsquids canals.jpg|Red Bullsquids in the map "d1_canals_02". 
FileD1 canals bullsquid broken.jpg|Red Bullsquids attacking the player in the map "d1_canals_02", with the toxic spit sprite not showing properly. 
FileD1 canals bullsquid headcrabs.jpg|Red Bullsquid attacking Headcrabs in the map "d1_canals_02".
FileCanals 02 11 bullsquid.jpg|Red Bullsquid in the map "canals_02_11".
FileWasteland bridge05 02.jpg|Red Bullsquids in the prefab Wasteland map "wasteland_bridge05".
FileBullsquid body signed.png|Texture for the red Bullsquid model, signed by Ted Backman.

==List of appearances==

*''Half-Life Day One'' {{1st}}
*''Half-Life Opposing Force''
*''Half-Life Blue Shift''
*''Half-Life Decay''
*''Half-Life 2 Raising the Bar''


==External links==

*{{YouTube|VGUyEBUAHqM|Bullchicken model}}
*{{YouTube|liaoOIVPSxE|Bullchicken animation}}

CategoryXen creatures
CategoryHalf-Life Opposing Force
CategoryHalf-Life Blue Shift
CategoryTed Backman designs


|attention={{cleanup image}}
|description=The Bullsquid.
|other versions=
|cat artist=
|cat subject=CategoryBullsquid imagesCategorySector E Materials Transport images
|cat type=CategoryHalf-Life screenshotsCategoryImages for clean up (Half-Life)