Mr. Hat made a magic show in DenTown. While Lan and Mayl were watching his show, an error occured in the tent's control system and the show had to be interrupted to the staff check the problem. Lan Hikari sent MegaMan to help them check the tent's computer. Later, another problem occurs, and Lan discovers that Mr. Hat's son was using HatMan.EXE to cancel the show and have more time with him. After hearing Lan's and Shuuichi's conversation, Mr. Hat apologizes for not paying attention to his surroundings and not being a good father, and comments that Shuuichi was able to use HatMan quite well. After giving HatMan to Shuiichi, Mr. Hat says that he was planning to create a magic show in the cyberworld, and asks his son to help him with it. Afterwards Mr. Hat completes his show.
Mr. Hat appeared in episode 21 of the anime and is Hatman's operator.