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Your job is to basically find the end-of-level boss, and then defeat it to obtain the key that will open the level exit, but your task is made difficult by the planet's inhabitants. Get the jet-pack to make it easier to navigate the level and shoot any inhabitants that get in the way. These inhabitants will leave behind something that you can get to increase your score, and the inhabitants will eventually regenerate. If any one of them touches you while you have the jet-pack, you land on the ground or the nearest platform, and have to get it again; and the same rule applies to the key.


Quartet Commodore 64 Beware the bullseye
Quartet Commodore 64 Level 7
Quartet Commodore 64 Boss 2 of 2
Quartet Commodore 64 Get this power-up to freeze all inhabitants on screen

Promo Images

Quartet Other
Quartet Other
Quartet Other
Quartet Other

Alternate Titles

  • "Mobile Quartet" -- Mobile Sega Ages title
  • "Double Target: Cynthia no nemuri" -- Japanese Arcade title
  • "Double Target" -- Japanese SEGA Master System title

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User Reviews

There are no reviews for the Commodore 64 release of this game. You can use the links below to write your own review or read reviews for the other platforms of this game.

Critic Reviews

Happy Computer Aug, 1987 37 out of 100 37
ASM (Aktueller Software Markt) Sep, 1987 4.4 out of 12 37
Commodore Force Aug, 1993 24 out of 100 24
Computer and Video Games (CVG) Jun, 1990 23 out of 100 23


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Katakis | カタキス (39492) added Quartet (Commodore 64) on Apr 01, 2004
Other platforms contributed by Martin Smith (66870), Pseudo_Intellectual (60614) and Katakis | カタキス (39492)