Android Imperfect or Android 0.1, is the failed android Dr. Gero built. He designed it to serve for his vendetta against Goku, but Android Imperfect turned on Gero and almost killed him. Gero managed to get Android 1 to protect him and Android Imperfect was defeated. 0.1 attacked Gero when he was turned into an android. 0.1 was beaten by Gero and he was scraped and his parts were destroyed.