Profile, Abilities and Weaknesses description from The Transformers G1 series by Marvel Comics.

Profile: If ever there were a Decepticon worth avoiding, Horri-Bull is it. It's not just that he's a bad tempered bully with a penchant for smashing through, anything (or anyone) in his path and then coming back and grinding them into dust.  No, why so many Transformers (be they Autobot or Decepticon) tend to go out of their way to avoid Horri-Bull, is that when it comes to personal hygiene, Horri-Bull leaves a lot to be desired. Even he can't remember the last time he had a steam bath, and his body is coated with several years worth of grime and grease. To make matters worse, a glitch in his internal fuel lines means that he continually regurgitates used oil as a black sludge that then drips (or worse, sprays) from his mouth as he talks. This, combined with the fact that he has a habit of belching noxious clouds of black smoke from his nose goes some way to explaining why he is such a solitary character. Many wonder why Horri-Bull doesn't at least wash, or have his fuel lines repaired. The fact is, he likes being an odius slob, feeling it somehow' sets him apart from the run-of-the mill Decepticon warrior. He's ideally paired with Nebulan partner, Kreb, a former talk-show host with obnoxious manners. If it's disgusting, Kreb will revel in it. His blantant rudeness rounds off the equation, making Horri-Bulla thoroughly unpleasant specimen.

Abilities: Though somewhat limited in the brain department, Horri-Bull is both very strong and very tough (though it's rumored that a good percentage of his armor plating is actually dirt). He's a lumbering engine of destruction, wielding (in robot mode) a concussion blaster with an effective range of over twelve miles. In bull mode, he's even more densely armored, and uses a tail flame thrower to incinerate his enemies. If Horri-Bull wishes to hide himself from enemy view (and it's not an option he often feels constrained to use), he can emit an effective -- if odorous -smokescreen by exhaling dense clouds of black smoke. He's by no means fast, but he always gets the job done!

Weaknesses: Horri-Bull has few actual weaknesses. but does tend to find himself isolated from back-up in battles. It's also said that if the wind is blowing in the wrong direction, Horri-Bull is something of a liability, as his foes can smell him a mile off! 

Bibliography of significant appearances: 

* (Marvel) Transformers #46- The second series Decepticon Headmasters debut, with their Nebulan partners.
* (Marvel) Transformers #77 - Fangry loses his temper and takes out his frustration on the newly reformatted (Action Master) Grimlock, before subsequently getting a good old fashioned butt whipping!
* (Marvel) Transformers 78 - Decepticon Headmasters lay waste to the planet Klo.
* (Marvel) Transformers 80 - final issue of Marvel TF series, they wreck some havoc before getting their tails kicked and retreating for good! 

Other Appearances: