Galaxian3: Project Dragoon

Galaxian3: Project Dragoon is a 3D rail shooter video game developed and published by Namco. It was originally a theme park attraction designed for the International Garden and Greenery Exposition (Expo '90) in Japan, and was later released as an arcade game in 1992. The game involves players controlling a starship named the Dragoon in its mission to destroy Cannon Seed, a superweapon set to destroy what is left of the human race.

The story is set far into the future, where mankind is studying interstellar travel and exploring the outer regions of the Solar System. When a group of humans settle on the planet Alpha, they detect unusual crustal movements within its surface. In response, the UGSF is sent to investigate, only to discover the planet is being inhabited by the UIMS. The race is using Alpha to construct a powerful superweapon called Cannon Seed, capable of destroying any planet in its radius. To prevent Cannon Seed from destroying what is left of humanity, the UGSF deploys its largest and most-powerful starship, the Dragoon, to destroy the UIMS once and for all.