○×✓（マルバツ）は海外でも通じない：Meaning of tick / check marks, crosses, circles in Japan, UK, USTest markings in Japan: Check marks or X represent a wrong answer and circles correct ones. 日本は○が正解、✓や×は誤答 When the former SONY designer, Teiyu Goto, explained it as part of the creator's intended symbolism for the triangle, square, circle, cross designs in PlayStation controller, non-Japanese readers got really shocked and said "I finally know why in most Japanese games, users select with circle
