Bōseki Banki (22): A spinning mule Savage Earth Barbaric Machine Beast sent by Yogostein to aid Hiramechimedes in his plan by attacking him. She is able to fire streams of yarn string to immobilize her enemy in her Shuuraiya attack. However, once Hiramechimedes springs his trap, she undergoes "Original Industrial Revolution" to lay the deathblow on Seiku-Oh before being the first Savage Machine Beast to be scrapped by Engine-O G9.
- Height: 224 cm to 56 m
- Weight: 252 kg to 630 t