Quartet © 1987 SEGA of America, Inc.
North American release. Game developed in Japan. See the original for more information; "Double Target - Cynthia no Nemuri [Model G-1314]".
Description from the back cover:
If you hate aliens, you'll love Quartet!
You see, space colony Number Nine is being threatened by an invasion of the most dangerous kind. Alien attack. And the place is crawling with them.
These vicious, vile parasites have even managed to confiscate the casket of the late, great Queen Cynthia.
Its your job to exterminate these treacherous creatures. To return the casket to it's hallowed tomb. And save the colony from certain collapse.
You'll have special equipment to help you along the way. Like a supersonic jet engine, a special bomb, missiles and a magic key.
But time is running out. So don't just stand there thinking about it. Get on it.
And get rid of this gruesome group. For good!
GAME ID: 5073
Released on April 15, 1987 in North America for the Sega Master System.
Game's ROM.