Blackey serves in the Yaban forces, invaders from the planet Yaban who assault Earth after Duke Fleed's arrival. Piloting one of the Yaban's distinctive green compact saucers, Blackey operates this versatile craft capable of transforming into wingless dragons or tanks. The saucer is armed with weapons including orange lasers, bladed discs, and chains. Blackey participates in the Yaban campaign targeting Earth's major cities and confronts Duke Fleed and the Gattaiger robot during the conflict.