Sega Retro

Alex Kidd in Miracle World

Alex Kidd in Miracle World
Alex Kidd in Miracle World
Publisher: Sega

Developer: Sega

System(s): Sega Master System, Virtual Console

ROM Size: 128kB

Genre: Action

Release Date RRP Code
Sega Master System JP 1986-11-01 ¥5,000 G-1306
Sega Master System US 1986 $?  ?
Sega Master System US (Rerelease) 1990 $? 5067
Sega Master System EU 1987-09 £19.95 MK-5067-50
Sega Master System DE 1987 60DM 41013
Sega Master System BR 19xx $?  ?
Sega Master System KR 19xx ₩? GB-1306-KS
Sega Master System TW 1987 NT$? G-1306
Virtual Console JP 2008-05-13 500 points  ?
Virtual Console US 2008-06-23 500 points  ?
Virtual Console EU 2008-06-13 500 points  ?

Alex Kidd in Miracle World (アレックスキッドのミラクルワールド) is a video game released in 1986 by Sega for the Sega Master System console. It is the first of several games in the Alex Kidd series, starring a character which would serve as the company's mascot for half a decade before being replaced by Sonic the Hedgehog.

Alex Kidd in Miracle World stands as one of the more popular Master System releases, having been built into many Master System consoles during the late 1980s and early 1990s. It is also one of the few Master System games to have an official Korean translation. Alex Kidd in the Enchanted Castle may be considered a direct sequel to this game, as it continues the story of Alex's search for his father, King Sander (a.k.a. King Thunder).

The game has since been re-released for the Wii's Virtual Console service.


Alex Kidd is a platform game which bears a superficial resemblance to Nintendo's Super Mario Bros. You play as Alex, the eponymous character who lives on the planet Aries, who is an expert in the martial art of Shellcore, which enables him to break certain blocks and enemies by punching them. These blocks typically contain money, which can be spent on power-ups and extra lives in shops, however some blocks also contain power-ups, or ghosts which follow Alex until he puts enough distance between them.

In some levels, you will be able to use vehicles to assist your progress - the Sukopako Motocycle, the Peticopter (a pedal-powered helicopter equipped with missiles) and the Suisui Boat. Throughout the game you learn that Alex is a prince of the royal family, who has been usurped by a tyrant named Janken. Your goal is to free the captured royals, and defeat Janken and his henchmen in games of rock-paper-scissors followed by traditional boss fights. In addition, you must collect a series of treasures which will help you bring peace to the kingdom of Radaxian and restore the citizens who were turned into stone.


AKiMW Mt Eternal.png Mt. Eternal
Second half of this level includes a shop where you buy your first Motocycle.
AKiMW Lake Fathom.png Lake Fathom
A hidden area can be found under one of the octopuses.
AKiMW St Nurari.png The Island of St. Nurari
First Peticopter level.
AKiMW Village of Namui.png The Village of Namui
The boss for this level is a charging bull.
AKiMW Mt Kave.png Mt. Kave
Collect an item which allows you to read opponents' thoughts in janken matches.
AKiMW Blakwoods.png The Blakwoods
Lots of tricky jumps over spike traps and a sword-wielding bear for a boss.
AKiMW Bingoo Lowland.png Bingoo Lowland
Has clouds that shoot columns of lightning.
AKiMW Radaxian Castle.png The Radaxian Castle
Rescue Alex's brother at the end of this maze-like castle.
AKiMW City of Radaxian.png The City of Radaxian
AKiMW Nibana.png The Kingdom of Nibana
AKiMW Janken.png Janken
Fight Janken at the end of a long and difficult castle.
AKiMW Cragg Lake.png Cragg Lake
Enter the correct sequence in the cavern under the lake to receive the final item and complete the game.

Version Differences

  • The first release of this game had the actions of buttons 1 and 2 swapped around. It was later changed with its Master System II inclusion to better correlate with other games out at the time.
  • In the Japanese release, Alex collects a rice ball to complete a level and is seen eating it on the following map screen. This was changed to a hamburger in western releases, since rice balls are a food particular to Japan only.

Production Credits

By: Kotaro, Yoko Matilda, Rie Wakashimazu, Papa Kouichi, Toku, Bully Kaori, Bullied Toshi

Based on other known roles, a more detailed credit list would be as follows:
Planner: Kotaro
Art Designer: Yoko Matilda, Rie Wakashimazu
Programmer: Papa Kouichi
Sound: Toku
Special Thanks: Bully Kaori, Bullied Toshi



Physical Scans

Sega Master System 80 Sega Retro Average
Based on 9 reviews
Publication Score Source
ASM ­† 78
Complete Guide to Consoles 87 №1, p47
Complete Guide to Consoles 86 №4, p90
Happy Computer 80 April 1986
S: The Sega Magazine 93 №10, p24
Sega Power 80 №23, p55
Sega Pro 95 №1, p19
Tilt 65 №50
VG&CE 60
Master System, US
AKiddInMiracleWorld ms us cover.jpg


AKiddInMiracleWorld ms us-eu cart.jpg
Alexkiddmiracleworld sms us manual.pdf
Master System, US
"SM" variant
AKiMW US sm cover.jpg


Alexkiddmiracleworld sms us manual.pdf
Master System, US
AKiMW US rerelease cover.jpg


Master System, EU
AKiddInMiracleWorld ms eu cover.jpg


AKiddInMiracleWorld ms us-eu cart.jpg
Master System, EU
"no limits" variant
AKiMW EU nolimits cover.jpg


Master System, JP
AKiMW SMS JP Box Back.jpgNospine.pngAKiddInMiracleWorld ms jp cover.jpg


AlexKiddMW SMS JP Cart.jpg
Master System, BR
AKiddInMiracleWorld ms sa cover.jpg


AKiMW SMS BR Cart.jpg
Master System, BR (Alt)
AKiMW SMS BR Box Alt.jpg


AKiMW SMS BR Cart.jpg
AKiMW SMS BR Manual Alt.pdf
Master System, BR
Master System Super Compact Built-In
AKiMW SMS BR Manual BuiltIn.pdf
Master System, BR
Master System III Compact Built-In
AKiMW SMS BR Manual BuiltIn Alt.pdf
Master System, AR
Master System, TW
AlexKiddInMiracleWorld SMS TW backcover.jpgNospine.pngAlexKiddInMiracleWorld SMS TW cover.jpg


AlexKiddInMiracleWorld SMS TW cart.jpg
Master System, DE
AlexKiddMW SMS DE Box.jpg


Master System, KR
AKiMW SMS KR Gamboy cover.jpg


AKiMW SMS KR Gamboy cart.jpg

External Links

Alex Kidd punching sprite Alex Kidd series of games
Sega Master System Alex Kidd in Miracle World (1986) | Alex Kidd BMX Trial (1987) | Alex Kidd: High-Tech World (1989) | Alex Kidd in Shinobi World (1990)
Arcade Alex Kidd: The Lost Stars (1986)
Sega Mega Drive Alex Kidd in the Enchanted Castle (1989)
Chars Alex Kidd | Other Characters
Alex Kidd related media
Albums Alex Kidd Complete Album (2009)