Zillion, known as Akai Koudan Zillion . Red Photon Zillion) in Japan, is a space adventure platform video game developed by Sega and designed for the Master System as a companion tie-in for Tatsunoko Production's Zillion anime series in 1987.
The Zillion series prominently features Sega's egg-shaped mascot, Opa-opa, who stars in the Fantasy Zone games, which are also available for the Master System. A sequel to the game, Zillion II was released in 1988.
