Quartet

Screenshots1 / 2

The title screen displays "QUARTET" in large yellow text at the top center against a deep blue starfield background. Below are two instruction lines in white text reading "PUSH 1 PLAY START BUTTON" and "PUSH 2 PLAY START BUTTON." To the right of the text, three pixel-art characters in bright colors—yellow, red, and green—are positioned in a dynamic action pose. The sprites use the characteristic low resolution and limited palette typical of early SMS graphics.

Quartet

4.2 (626)
Master System Action 0 plays

Quartet stands as a defining action title on the Sega Master System. With polished gameplay mechanics and memorable level design, this classic delivers an experience that has stood the test of time.

Developer
Platform
Master System
Genre
Action
Players
2P
Rating
4.2 / 5 (626)
Last updated

Quartet Controls — Master System Keyboard Keys

Default keyboard bindings for Quartet on our in-browser Master System emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.

Keyboard Console button Typical use
D-Pad Up Move up
D-Pad Down Move down
D-Pad Left Move left
D-Pad Right Move right
X 1 Primary action (jump / confirm)
Z 2 Secondary action (attack / cancel)
Enter Pause Start / Pause

Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.

Quartet Longplay & Gameplay Videos

Watch a full playthrough of Quartet on Master System before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.

Watch longplay on YouTube

"Quartet" Master System longplay

Quartet Cheat Codes

13 community-curated cheats for Quartet. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.

  • Infinite Lives

    00C0-160300C0-1609002-ABD-3BE
  • Infinite Time (Most Digits)

    00C2-C0FF
  • Infinite Time (First Digit - Fourth From Left)

    00C2-C109
  • Invincibility - Player 1

    00C2-C110
  • Infinite Time - Player 1

    00C2-C099
  • Level Select (Replace ? With 0-5)

    00C0-0F0?00C0-0F00
  • Level Number (Replace ?)

    00C0-0E0?00C0-0E00
  • Invulnerability

    00C2-C5FB00E-89A-3BE
  • Infinite Health - Both Players

    B69-42D-3BE+7E9-22E-3B7
  • P1 Infinite Lives

    002-ABD-3BE
  • P2 Infinite Lives

    002-ECD-3BE
  • Infinite Health

    189-24E-2AA
Show 1 more cheats
  • Invulnerability After Being Hit

    18E-8AA-6EA
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External references

Frequently Asked Questions

Who developed Quartet?

Quartet was developed by SEGA, available to play in your browser on RetroGameSpace.

How many players does Quartet support?

Quartet supports up to 2 players, ideal for couch co-op or competitive sessions on the Master System.

What type of game is Quartet?

Quartet is a Action game for the Master System, playable instantly in your browser — no downloads, no installs.

How can I play Quartet for free?

Open this page and click "Play Now" — Quartet runs free in your browser via WebAssembly emulation. No account, no payment, no installer.

Do I need to download anything to play Quartet in the browser?

No. Quartet streams from a public archive into a browser-side Master System emulator. Nothing is installed on your computer.

Can I save my progress in Quartet?

Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Master System cartridge supported.

Does Quartet work on mobile devices?

Yes — the Master System emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.

Is it legal to play Quartet this way?

RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Quartet. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.

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