Well first off I knew about school games like Mario teaches typing and Mario s time machine but to be honest I didn't think The Sonic Series would do the same thing.  The main title explains what happens Sonic Edusoft  Short for Education Software . This game was meant to teach math and stuff more like for 4 or 5 th grade school stuff.  it was  supposed to be released in 1991 nobody knew why it was not released I bet they didn't care though because they knew it was a school game . No one really knew or cared about it until a Wikipedia page reported about it 15 years later. After that wikipedia putted more detail  in the game a year later.After that Wikipedia offfically removed that page because nobody would care about it.  the game got into a prototype Rom file  in 2008 by sonic retro but I guess they decided to discontinue . And yes they were the same people who made that awkward Sonic Epoch for the Game Boy Advance.  from what  I know most levels need mostly math stuff..and this was a unreleased  game .

Graphics this was the only good part about the game. The graphics are very sharp rich and colorful they look like sonic 1 on the Sega genesis. But most stages just have sonic in a background waiting for you to fill out the questions although there rich and colorful there is no detail what so ever in the backgrounds. Graphics gets a 6 even if it is a unreleased game they could have improved some detail 

Sound there is no Sound effects unless you hit the number buttons . You don't hear conics jump any more or anything . The Soundtrack is just really a boring loop over song over and over again. Sound gets a 3 I understand this was unreleased but honestly I think sonic retro could have also stepped up the sound effects 

Addictiveness 1 I really do not find games like this fun . Of course school building and school software was coming out so it figure   Nintendo and other companies  would make some games to capitalize on it, I mean what is so fun about doing math with sonic waiting on you for the answers. There is 3 mini games  but there mainly butchered and unplayable do to the game being discontinued. It was only a prototype and it remained that way permanently.

Story Blank   I don't really get what s the story but im guessing it has something to do with robotink or some villain .I don't really know. I got so bored I turned off the game  and I didn't see no intro or storyline in the beginning all you do is just solve school stuff but with sonic . 

Depth  it just has normal school work I don't see the point if I wanna learn I will just go to an actual school than play this game. Depth gets a 3 really lame stuff again the title explains everything 

Difficulty 1 honestly I could beat the game in minuets  it really depends on how well you know your math and words . Does not really matter  because nobody likes these types of games 

Overall 0.5 this is just a game that should have been left dead and unreleased I understand the sonic retro wants to show their dedication to the sonic series but bringing back a unreleased title like this a very bad way to do it . I rated it 0.5 because only thing good is the graphics. Other besides graphics everything else sucked.

if you wanna know more stuff about this school game i have a link here http://info.sonicretro.org/Sonic's_Edusoft just copy and paste it if you wanna know more about it