Super Beast may be joined by other creatures that are not truly considered part of his "company", but are still obstacles to be defeated. Some examples are:
- Cultists that offer the Beast sacrifices and guard/watch the entrance to his lair.
- Giant Rats that feed on the remains of the dead while he sleeps.
- The spawn/offspring of the Beast that have similar attacks, but much weaker.
There could also be environmental dangers:
-Toxic gases that are too weak to affect the constitution of the Beast but pose a hazard to the invading company.
- Pools of volatile/corrosive liquids that force the party to fight/approach in a roundabout way (unless, at their peril, they want to enter said pools).
- Dust/Detritus kicked up by the fighting/flailing of the Beast which it uses to it's tactical advantage. This might put the party at a penalty to fight or shoot.
-Traps (natural or constructed)
How's that for thinking outside the box?