Mission 660 (released as The Alphax Z in Japan) is a vertically scrolling shooter arcade video game released in 1986. It was developed by Woodplace and licensed for distribution to Taito. Enemies resembling space fighters are interspersed with flying mice, cats and skulls, giving the game an unusual feel.

Mission 660
Developer(s)Woodplace
Publisher(s)Taito
Platform(s)Arcade
Release1986
Genre(s)Scrolling shooter
Mode(s)1-2 players alternating turns