A juvenile with titanic power, Rockuma are the gangsters of monsterkind. Rockuma form gangs of family members and trusted friends to protect themselves from rivals. The gangs adhere to a strict pecking order, and when this order is disrupted hell breaks loose. The lowest, hungry Rockuma are desperate, looking for any way to rise up through the ranks.
They are skill climbers, but they prefer to use brute force to knock down trees with their heavyset bodies. These bullies prefer to raid the nests of weaker monsters instead of doing their own hunting.