Headstrong
From Multiversal Omnipedia
Headstrong was a Decepticon (Destron) warrior, member of the Predacon subgroup. His alternate mode was a rhinoceros. As his name suggests, he was a very stubborn individual, and he was also slow to act. However, once set on a course, Headstrong was nearly impossible to sway. With the other Predacons, Headstrong formed the super-robot Predaking.