Sonic's Edusoft

From Sonic Retro

SonicsEdusoft SMS Title.png
Sonic's Edusoft
System(s): Sega Master System
Publisher: U.S. Gold, Sega
Developer: Tiertex
Genre: Educational
Number of players: 1
Status of prototype(s): Dumped

Sonic's Edusoft is an unreleased educational game for the Sega Master System developed in 1991 by Tiertex. The unofficially licensed game had been unknown until a Wikipedia page was created in September 2006. This page has since been removed from Wikipedia.

In March 2007, "the programmer" replied to an SMS Power topic concerning the Wikipedia page, revealing more details about the game[1]. On April 27th, 2008 the ROM was finally brought to the attention of the Sonic Retro community. The game will only run on certain emulators.


World map

This is the Hub which is used to select the Options screen (represented by a question mark), Levels or minigames. There are some interactive areas, such as cliffs that require jumping over, and also two rideable helicopters and a hot air balloon.

Main levels

There are over 15 levels in the game. All of them involve problem solving and for every problem solved your character will move forward eventually reaching the end of the screen and clearing the stage. Your opponent varies depending on the speed setting set at the options screen. For example, if you choose Snail you will race a Moto Bug, but when hare is selected you will race a much faster Rabbit, and the time limit is decreased.

Most of the levels involve find the word puzzles where you have to spell out a word using the available letters. These levels are sometimes interrupted by a match the letters segment, where you must find a certain amount of matching letters among the available letters shown onscreen. The match the letters segment is somewhat broken because sometimes no matching letters are ever shown, or actually matching the letters may give a wrong answer anyway. In those cases you have to select the wrong answer to get the right answer.

Other levels involve solving mathematical equations: addition, subtraction, division, and multiplication.


There are also 3 minigames available. All of them have a time limit and score counter.

SonicsEdusoft SMS Balloon Minigame.png
This minigame involves Sonic rolling across the ground to pop a balloon as it passes by. The minigame is broken though, and balloons will pop for inexplicable reasons.
Edusoft mzminigame.png
This game involves Sonic jumping on a moving trampoline to reach the other side of the screen. The player doesn't control Sonic; rather, they control the trampoline and try to keep Sonic from hitting the ground.
Edusoft ghminigame2.png
Green Hill Mini-game
In this game Sonic races sideways and jumps to avoid debris littered on the ground. Two different jump buttons are used in this game - one is a full screen jump, and the other is a much shorter jump. Also, there are balloons in the air which the player can pop by jumping into them, which will add 100 points to their score.

Hidden content

Sonic Retro emblem.svg Main article: Sonic's Edusoft/Hidden content



GerbilSoft has created a hacked version of Sonic's Edusoft that should work in most emulators. The hacked version is available for download below.


Download Sonic's Edusoft
Multiple downloads available

Technical information

ROM dump status

System Hash Size Build Date Source Comments
Sega Master System
CRC32 d9096263
MD5 5919b101624d4710a10825c34e753ba2
SHA-1 f1357505cbcebfab52327a5fc9c3437f54d8da40

External links


Sonic's Edusoft


Main page | Hidden content

Sonic the Hedgehog games for the following systems
Sega Master System
Sega Game Gear
 1991  Sonic the Hedgehog     1992  Sonic the Hedgehog 2     1993  Sonic Chaos | Dr. Robotnik's Mean Bean Machine     1994  Sonic Drift | Sonic Spinball | Sonic the Hedgehog Triple Trouble     1995  Sonic Drift 2 | Tails' Skypatrol | Tails Adventures | Sonic Labyrinth | Sonic 2 in 1     1996  Sonic Blast    
 Unreleased  Sonic's Edusoft
Unreleased Sonic the Hedgehog games
Sega Master System
Sonic's Edusoft | Sonic the Hedgehog (home computers) |
Sega Mega-CD
Sonic the Hedgehog |
Sega Mega-CD
Sonic the Hedgehog 2 CD |
SegaSonic Bros. |
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Sonic X: Chaos Emerald Chaos |
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Google Android OS
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Sonic X-treme (Point Of View | Project Condor | SonicPC)