Alex Kidd in Miracle World

aka: SEGA AGES: Alex Kidd in Miracle World
Moby ID: 8330
SEGA Master System Specs

Description official descriptions

Many centuries ago, on the planet Aries, there lived a boy called Alex Kidd. For seven years, he lived on Mt. Eternal studying Shellcore, an ancient art that makes one strong enough to break rocks into pieces. As he was leaving the mountain one day to travel to his spiritual homeland, a dying man told him that the peaceful city of Radactian was in grave danger. Before taking his last breath, the man gave Alex a piece of a map and a medallion made of Sun Stone.

There are eleven locations in which Alex must explore, each of them has its own unique dangers. In each location, Alex can collect bags of coins, which can be used to buy items at the shop and are used to help Alex get through each location (eg: motorcycle, peticopter, power bracelet, etc.) There are also traps that Alex must avoid like the ghost that chases him. He can also collect the Telepathy Ball that will help him read people's minds.

Later, Alex learns that in order to save Radactian from destruction, he must first defeat Janken the Great, Emperor of the planet Janbarik (he got his name from his expertise at the game of Janken -- or what people call "scissors, paper, stone" in the Western World. Janken has sent his henceman all over Radactian to prepare the game for Alex as he passes by them. In order to get past them, Alex must win three times at Janken. If he loses, he is turned to stone and vanished from Radactian forever. Later on in the game, Alex must play with the same henceman, but only this time, when Alex wins, they decide to play dirty.

Alex uses his fists to wipe out some of Janken's enemies such as birds, sea horses, bats, monkeys, frogs, and a few others. If his quest to save Radactian from the evil hands of Janken becomes difficult, he can instead use the power bracelet to perform the "Shocking Waves of Destruction", an ancient trick in the art of Shellcore.

Before Alex comes face-to-face with Janken, he should rescue his brother, Egle, from imprisonment, and get the letter and two medallions.


  • SEGA AGES ใ‚ขใƒฌใƒƒใ‚ฏใ‚นใ‚ญใƒƒใƒ‰ใฎใƒŸใƒฉใ‚ฏใƒซใƒฏใƒผใƒซใƒ‰ - Japanese Nintendo Switch spelling
  • ใ‚ขใƒฌใƒƒใ‚ฏใ‚นใ‚ญใƒƒใƒ‰ใฎใƒŸใƒฉใ‚ฏใƒซใƒฏใƒผใƒซใƒ‰ - Japanese spelling

Groups +



Credits (SEGA Master System version)

8 People (7 developers, 1 thanks)

By (ใƒใ‚ค)
  • Kotaro Hayashida (Kotaro [ใ“ใ†ใŸใ‚ใ†])
  • Alex Yoko (Yoko Matilda [ใ‚ˆใƒผใ“ ใพใกใ‚‹ใ ])
  • Rieko Kodama (Rie Wakashimadzu [ใ‚Šใˆ ใ‚ใ‹ใ—ใพใฅ])
  • Papa Kouichi [ใƒ‘ใƒ‘ ใ“ใ†ใ„ใก]
  • Tokuhiko Uwabo (Toku [ใจใ])
  • Kaorin (Kaori the Bully [ใ„ใ˜ใ‚ใฃใ“ ใ‹ใŠใ‚Š])
  • Toshinori Asai (Toshi the Bullied [ใ„ใ˜ใ‚ใ‚‰ใ‚Œใฃใ“ ใจใ—])
We dedicate this story to... May children yet to be born be strong, and have love and bravery, like Alex. (ใ†ใพใ‚Œใใ‚‹ใ€€ใ“ใฉใ‚‚ใŒใ€€ใ‚ขใƒฌใ‚ฏใฎใ‚ˆใ†ใซใ€€ใ‚ใ„ใจใ‚†ใ†ใใ‚’ใ‚‚ใคใ€€ใคใ‚ˆใ„ใ“ใงใ€€ใ‚ใ‚Šใพใ™ใ‚ˆใ†ใซใ€€ใ“ใ†ใ„ใกใจใˆใฟใซใ€€ใ“ใฎใŠใฏใชใ—ใ‚’ใ€€ใ•ใ•ใ’ใพใ™ใ€‚)
  • Kouichi and Emi [ใ“ใ†ใ„ใกใจใˆใฟใซ]



Average score: 79% (based on 40 ratings)


Average score: 3.9 out of 5 (based on 84 ratings with 4 reviews)

Difficult but one of the finest platformers ever made

The Good
You get to punch a bat, a bull, a scorpion, & even a fish in the face! The FACE! Starting the game by going down instead of right or even up is great & fresh. The vehicles are awesome, the gameplay is awesome, the variety of items is awesome & fun. There is only one secret stage but the challenge to get to it is fun. The ending castle is very well laid out.

Graphics for 1986 are stunning & hold up perfect today. The title screen is awesome! Each Alex Kid game has Alex being able to walk behind things as a graphic bonus. Here he walks behind grass making it look tall. In Enchanted Castle he walks behind sand mounds to make him look like he's going through it & in Shinobi world he walks between alternating fore-ground/back-ground bamboo. Best of all here & in enchanted castle there are scorpions hidden in the grass/sand making use of this for gameplay. There is a plant jutting out of lava in one stage. It isn't a vine you can grab onto, it kills you. But it is a plant rising out of lava! So insane yet so awesome.

The Bad
The 1 hit death is the worst part of the game. You cannot have two of the same item. There is nothing in-game to tell you what the items do. The ending challenge is insane.

The Bottom Line
Difficult but one of the finest platformers ever made especially from around its release date. A worthy contender to Super Mario Bros. Super Mario Land's use of vehicles always felt like it borrowed from this.

SEGA Master System · by Emperor MAR (2598) · 2013

Good platform adventure with story, map, inventory and shops.

The Good
Super Mario Bros. is an obvious comparison, but Alex Kidd has a bit more depth i.e Alex receives directions from the friends and relatives he meets along the way, checks his path on a map and holds an inventory of magic items and vehicles. I also preferred punching blocks to head butting them. Having dialogue with bosses and beating them in games of "paper, rock, scissors" is an interesting touch too.

The Bad
While it was new and different at the time, it seems a little too cute and simple now. The game isn't exactly easy, but I'd say it's meant for children to play and master over a long period.

The Bottom Line
Better than Super Mario Bros., I reckon one of the best console games of its time and it's innovative. Maybe it wasn't made with adults in mind and doesn't quite stand the test of time like other games.

SEGA Master System · by Andrew Fisher (697) · 2018

Sega's rival to Mario in the action platform category

The Good
It is an excellent platform action game with the added feature of being able to purchase special items. And you get to play rock / paper / scissors.

The Bad
Everything is good. Except a basic complaint about several Sega Master System games that use the pause button. It's on the console itself. So to get the map and switch inventory items you have to be close enough to reach the console.

The Bottom Line
Think super mario bros. and add more modes and items and cool power ups. This is a must have game for anyone with a Sega Master System.

SEGA Master System · by gametrader (208) · 2003

[ View all 4 player reviews ]


1001 Video Games

The Master System version of Alex Kidd in Miracle World appears in the book 1001 Video Games You Must Play Before You Die by General Editor Tony Mott.

Master System 2

Alex Kidd in Miracle World was built into the hardware of the Sega Master System 2 for the European market.


In the first revision of the game Alex eats a riceball at the end of each level. In the later revisions of the game Alex eats a hamburger at the end of each level. Sega changed this because not many people outside of Japan know what a riceball or 'onigiri' is.


  • Power Play
    • 1987 - Best Master System Game '87

Additional information contributed by ใƒ—ใƒซใ‚นใƒžใƒณ


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  • MobyGames ID: 8330
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Are you familiar with this game? Help document and preserve this entry in video game history! If your contribution is approved, you will earn points and be credited as a contributor.

Contributors to this Entry

Game added by Katakis | ใ‚ซใ‚ฟใ‚ญใ‚น.

Nintendo Switch added by Rik Hideto. PlayStation 3 added by Sciere. Wii added by gamewarrior.

Additional contributors: chirinea, Sciere, Patrick Bregger, Rik Hideto, Jo ST, FatherJack.

Game added February 3, 2003. Last modified September 30, 2023.