Star Force, a vertical-scrolling shoot 'em up arcade game developed and published by Tecmo, was first released in Japan.
Tecmo released the sequel to Star Force, continuing the franchise with enhanced gameplay and graphics.
Star Force was ported to the Nintendo Entertainment System, making it accessible to the home gaming market.
The Dark Sectralbeast, a creature of chaos, emerges from the Galuda Solar System and threatens the peace of the galaxy.
In response to the rising threat of the Dark Sectralbeast and other hostile forces, Earth establishes the Star Force, an elite space fighter unit.
The Star Force encounters Queen Sectral, the powerful leader of the Sectral beast race, initiating the first major battle in the Galactic Solar System.
The Star Force engages in a fierce battle within the Galuda Solar System to prevent the expansion of Sectral forces into neighboring systems.
Star Force pilots successfully defeat Queen Sectral, severely crippling the Dark Sectralbeast's command structure and restoring temporary peace.
A new alien threat known as Araña Connection arises, initiating a new wave of invasions across the Galactic Solar System.
The Star Force launches a counterattack against the Araña Connection using newly developed weapons and technology adapted from conquered Sectral sites.
Following extensive battles, Star Force negotiates a peace treaty with a faction known as Section Z, ending hostilities on multiple fronts.