Batman is a hefty man. Due to him eating a bat SMILE, some of his features are bat like, most notably his bat ears, curved fangs, and legs that can transform into bat wings, enabling him to fly while still using his arms (unlike Hildon) for his archery skills. Similar to his fellow Gifters, he wears a horned hood and a dark leather jacket. He has a dark mustache. He also has a quiver on his back.
Batman is very loyal to his crew and the shogun of Wano Country, and would attack anyone who talks badly about them. He is also dedicated to maintaining the social order of Wano, as he tried to prevent the residents of Okobore Town from eating clean food.
Batman is a skilled archer, being able to shoot powerful arrows from the air mid-flight. He was surprised that Roronoa Zoro was able to block his shots, showing he holds his skills in high regard.
Batman ate a bat SMILE, which enables him to gain some attributes of a bat. He possesses a pair of large bat wings on his waist which enable him to fly. He also has bat ears which amplifies his hearing to six times that of a normal human's, allowing him to overhear people from a great distance.
Wano Country Arc
Batman and Gazelleman were tasked with hunting down thieves. At Okobore Town, he overheard Tsuru speaking ill about Shogun Kurozumi Orochi and shot an arrow at her, but Roronoa Zoro blocked it. Batman then fired more arrows at Zoro, but he deflected them. During the confusion, Gazelleman kidnapped Tama, and Batman fired arrows at Kiku, Monkey D. Luffy, Zoro, and Komachiyo as they pursued Gazelleman.
After Luffy and his group stole a cart of food from Bakura Town, Batman and two other gifters chased them to Okobore Town. When they tried to stop the town's citizens from eating the food, Luffy crushed them while putting down a giant water container.
The name and design of Batman could be a reference to the DC Comics character of the same name.