Headstrong is a Decepticon Predacon from the Generation 1 continuity family.
13 years after registering headstrong.de I finally discover why.
You can tell Headstrong that a three-foot-thick steel tank is full of dangerously radioactive waste, but it won’t do a lick of good if he thinks you’ve hidden the energon goodies in it. He’ll attack it with his unbreakable ramming head and acid-dripping horn until he’s conclusively proven wrong, then retreat with his well-earned wounds to suck his thumb, still convinced deep in his tiny brain that somebody had tricked him. Despite such mishaps, Headstrong still plugs away. He believes that tenacity can compensate those minor qualities in which he’s lacking, such as strength, intelligence, or courage. To his credit, not a few of his allies seem to subscribe to this philosophy, and Headstrong isn’t dead yet.