 He starred as a protagonist in Nagisa Oshima's film "Diary of a Shinjuku Thief".In 1968 Yukio Mishima claimed,

Tadanori Yokoo's works reveal all of the unbearable things which we Japanese have inside ourselves and they make people angry and frightened.He makes explosions with the frightening resemblance which lies between the vulgarity of billboards advertising variety shows during festivals at the shrine devoted to the war dead and the red containers of Coca Cola in American Pop Art, things which are in us but which we do not want to see.