I didn't like that the villain called himself Kamen Rider 00, especially since this story is a tribute to the original production. In my opinion, when the original Hongo calls himself KR, this becomes his "cry of independence" against the Shocker, making it clear that he will not be the puppet and will oppose the organization's point of view. When the final villain of the film claims that he is also a KR, it rings hollow, since he is still following a twisted path.