Spray Banki is a clumsy Savage Water Barbaric Machine Beast sent by Kegalesia to steal the Engine Cast of Birca. He can shoot acid from his mouth, which he does after counting to three. Kegalesia called spray Banki her own child. Kegalesia first showed herself to the others along with her beast. He was wounded by Birca and Gunpherd before Engine Oh destroyed him.
- Height: 192 cm to 48 m
- Weight: 216 kg to 540 t