Pet Shop serves as the guard of Dio Brando's mansion in Egypt. It ruthlessly kills any who may trespass or it deems as suspicious. When it first appeared, Pet Shop decapitates two large dogs with ease and smashes a beggar (employed by Abdul to find Dio's mansion) and his car with his stand. Pet Shop possesses incredible aerial agility and the ability to swim.

Spoiler

Ultimately, Pet Shop is defeated by Iggy, but is able to severely injure him by severing his leg in the process.

(Source: JJBA wiki)