Four, the enigmatic and otherworldly geometric character in Battle for Dream Island, brings a sense of mystery and unpredictability to the show. With its distinct four sides, Four takes on the role of hosting contests and challenges, adding an intriguing element to the dynamics of the competition. Its catchphrase, "X's the Output," further reinforces its enigmatic nature. Overall, Four's geometric design and enigmatic presence make it a captivating character in the show.