Alex Kidd in Miracle World

Screenshots1 / 2

A blue sky platformer level displays brown brick walls on the left and right edges, with floating grass-topped platforms in the center. A small character in red stands on a green grass platform mid-screen, facing a yellow bird enemy. Yellow blocks with star symbols and beige blocks are scattered across upper platforms. A second yellow bird flies in the upper left area. The lower left shows two yellow blocks stacked vertically containing star and face symbols, with four beige blocks above them. Bright green grass tops brown brick platforms throughout the scene.

Alex Kidd in Miracle World

阿里克斯:in Miracle World

4.9 (792)
Master System Action 0 plays

Alex Kidd in Miracle World is a side-scrolling action platformer developed by SEGA in 1986 for the Sega Master System. Players control Alex Kidd as he progresses through eight levels filled with enemies and obstacles. The core mechanic involves punching enemies and breaking objects to advance, with Alex able to perform a distinctive jumping punch attack. The game introduces power-ups including invincibility, increased punch power, and temporary flight capability. A unique feature is the rock-paper-scissors mini-game used for defeating certain boss characters, requiring players to make strategic choices rather than relying solely on reflexes. Players can also ride motorcycles in specific sections for brief periods. Each level concludes with a boss battle. The game employs a relatively straightforward level structure with increasing difficulty as players progress through the eight stages.

Developer
Released
Platform
Master System
Genre
Action
Players
1P
Rating
4.9 / 5 (792)
Last updated

Alex Kidd in Miracle World Controls — Master System Keyboard Keys

Default keyboard bindings for Alex Kidd in Miracle World 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.

Alex Kidd in Miracle World Longplay & Gameplay Videos

Watch a full playthrough of Alex Kidd in Miracle World 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

"Alex Kidd in Miracle World" Master System longplay 1986

Alex Kidd in Miracle World Cheat Codes

30 community-curated cheats for Alex Kidd in Miracle World. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.

  • Power Bracelet

    00C0-4D01
  • Magic Capsule A (Attack)

    00C0-4601
  • Magic Capsule B (Barrier)

    00C0-4701
  • Teleport Powder

    00C0-4A01
  • Cane of Flight

    00C0-4901
  • Telepathy Ball

    00C0-4801
  • Moonstone Medallion

    00C0-4B01
  • Letter To Nibana

    00C0-4C01
  • Hirotta Stone

    00C0-4E01
  • Start Level With Motor Bike

    00C0-5407
  • Start Level With Speed Boat

    00C0-5101
  • Level Select (Replace ? With 0-F)

    00C0-230?
Show 18 more cheats
  • Level 16 - Janken’s Castle (Janken The Great)

    00C0-2310
  • Final Level - Cragg Lake (Crown)

    00C0-2311
  • Have Power Bracelet

    00C0-4D01
  • Have Magic Capsule A [Attack]

    00C0-4601
  • Have Magic Capsule B [Barrier]

    00C0-4701
  • Have Teleport Powder

    00C0-4A01
  • Have Cane of Flight

    00C0-4901
  • Have Telepathy Ball

    00C0-4801
  • Have Moonstone Medallion

    00C0-4B01
  • Have Letter To Nibana

    00C0-4C01
  • Have Hirotta Stone

    00C0-4E01
  • Level Select

    00C0-2300
  • Level 16 - Janken's Castle [Janken The Great]

    00C0-2310
  • Final Level - Cragg Lake [Crown]

    00C0-2311
  • Hit Anywhere

    FFD-588-91506D-5F8-7F1+7DD-608-19B
  • Infinite Lives

    00C0-25027EC-289-3B77EC-2F9-3B7
  • Infinite Money

    00C0-30CC004-7EF-4C6
  • Invincibility (after dying) (blinking)

    2A6-5FD-6E2
Play Now

External references

Frequently Asked Questions

When was Alex Kidd in Miracle World released?

Alex Kidd in Miracle World was released in 1986 for the Master System.

Who developed Alex Kidd in Miracle World?

Alex Kidd in Miracle World was developed by SEGA, available to play in your browser on RetroGameSpace.

How many players does Alex Kidd in Miracle World support?

Alex Kidd in Miracle World is a single-player Action game for the Master System.

What type of game is Alex Kidd in Miracle World?

Alex Kidd in Miracle World is a Action game for the Master System, playable instantly in your browser — no downloads, no installs.

How can I play Alex Kidd in Miracle World for free?

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

Do I need to download anything to play Alex Kidd in Miracle World in the browser?

No. Alex Kidd in Miracle World streams from a public archive into a browser-side Master System emulator. Nothing is installed on your computer.

Can I save my progress in Alex Kidd in Miracle World?

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 Alex Kidd in Miracle World 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 Alex Kidd in Miracle World this way?

RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Alex Kidd in Miracle World. 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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