Answer: Fine motor
Explanation:
Fine motor skills are the skills that permits movement of fingers and hand with helps of small muscles.Coordination is established between eyes and forearm or fingers or hands. Activities like opening lunch box, holding color pencils, drawing etc are fine motor skills.
According to the question,Bobby's fine motor skills are getting developed through the small muscles movement taking place through his hand and finger while playing electronic games that are handheld and require finger push movement.