Vapor Trail (空牙)

Vapor Trail: Hyper Offense Formation, known in Japan as Kuuga – Operation Code Vapor Trail (空牙 – Operation Code Vapor Trail) and usually simply referred to as Vapor Trail, is a 1989 shoot 'em up arcade game developed and published by Data East. Vapor Trail was followed by Rohga: Armor Force and Skull Fang.

In 1999, a terrorist organization known only as DAGGER has occupied the city of New York where they have hacked into military defenses world-wide, established their own military command and gained access to nuclear missile silos. They hold the world hostage in this position and promise to cancel their threats of destroying the Earth only until the world's governments relinquish their power to DAGGER.