Instrumental Aggression
Aggression used to obtain a toy or other object is called instrumental aggression.
Instrumental aggression is a type of aggression that is fueled by the idea of obtaining something. It is calculated form of aggression which is premeditated. In this type of aggression, the person's intension is to harm the other person, not because of any personal issues or conflicts but to achieve the desired object. They consider that harming the other person would help them achieve their target.