"As Godzilla grew in popularity, his look changed to a less spiky, more kid-friendly design. One curious detail, which Mr. Tsutsui noticed in his research, is that Godzilla goes from four toes on each foot to three. That change might seem innocuous, but Mr. Tsutsui said there was a significant reason for it. “In Japan, four is a very unlucky number,” he noted. “So it makes sense that at the periods when Godzilla has been the most ominous, he should have four toes. In the period when he was less threatening, he would have three toes.”"