Silpheed is a science fiction-themed space shooter that was released in 1993 for the Sega CD.
The central computer system controlling the galaxy network has been hacked by terrorists. The terrorists are using the computer to attack colony planets throughout the system. You are the Galaxy Union’s last resort: you must fight your way across 11 stages to reach Earth, and re-take control of the computer.
As always, good luck and Have Fun!