As an S-Class hero, Genos is undoubtedly a powerful fighter. And for someone his age, Genos has a significant amount of battle experience, as he claims to have defeated countless evil entities and organizations before meeting Saitama.[16] His youth and impulsiveness still overcome him on occasion, which sometimes costs him victory in battle. According to Gyoro Gyoro, his functionality is terrifyingly proficient but lacks the firepower to take down something big and durable as Elder Centipede.