Steeljaw is the very epitome of a pet cat: interested in little else besides eating, sleeping, sunbathing, and occasionally leaving around disgusting freshly-killed things for Blazter to find. Whenever Blazter or the other Autobots try to order him around, or Ravage tries to get his "arch-rival" to fight with him, Steeljaw merely yawns and turns over to tan the other half of himself. Steeljaw must avoid wet environments since his body is particularly vulnerable to rusting.