Boring Banki (8): A boring machine Savage Land Barbaric Machine Beast sent by Yogostein to attack the city. Though he went to sleep suddenly, Boring Banki's sleep mode is a drilling mode to extract magma to destroy the city. In the end, Boring Banki is destroyed by both Engine-O and Engine Gattai GunBir-O.
- Height: 221 cm to 55.8 m
- Weight: 249 kg to 622.5 tons