Prowler is the bird partner of Hardware.
Before Prowler came out of Hardware's Rucksack, nothing is known about him. However, he has frequently been a life saver to Hardware.
Prowler is a transforming robot, though his television form is more like a flying dinosaur than a bird. His inactive mode is like a crowbar or cylinder, where is stored in Hardware's Rucksack. Hardware usually pulls him out, and then tosses him to the ground, where he transforms, flying up in his robotic animal form. He acts as a personal transport and getaway vehicle for Hardware, which has come in handy many times.