RayStorm consists of eight stages taking place between August 4 and August 7, 2219 AD; the first three stages take place on Earth, the last three at the fictional planet Secilia, and two between them in the orbits of Earth and Secilia, respectively [REF].
After the R-Gray(s) destroy the final boss, the ships try to escape the exploding "Juda Central System" (as the seventh stage is called) through a tunnel.