Sonic Jr. (lost build of unreleased Sega Pico game; existence
![Sonic Jr. (lost build of unreleased Sega Pico game; existence](https://lostmediawiki.com/w/images/0/0c/Sonic_jr.png)
![](https://lostmediawiki.com/w/images/thumb/7/75/Sonic-Tokyo-Toy-Show-6-1990_zpshfcvw5eq.jpg/646px-Sonic-Tokyo-Toy-Show-6-1990_zpshfcvw5eq.jpg)
Editing Sonic the Hedgehog (lost Tokyo Toy Show prototype build of
![](https://cdn.vox-cdn.com/thumbor/gDO9x0ZTAU_NYJSnyceNntN8bLM=/0x0:2000x1125/1600x900/cdn.vox-cdn.com/uploads/chorus_image/image/56303907/soniclostworld3ds_review_main_2500.0.jpg)
Nintendo vs. Sega: The battle over being cool - Polygon
![](https://i.redd.it/0143h2l7blk51.png)
Sega just downscaled the pre-rendered cutscenes from Wii U in
![](https://lostmediawiki.com/w/images/0/0d/Sonic_Runners_App_Icon_2.0.png)
Sonic Runners (found endless runner mobile game; 2015) - The Lost Media Wiki
![](https://i.ytimg.com/vi/hAhlifw0SoA/hqdefault.jpg?sqp=-oaymwEmCOADEOgC8quKqQMa8AEB-AH-BIAC4AOKAgwIABABGBEgcigRMA8=&rs=AOn4CLDVZWzSYEPdVRcxLKfn_iP0GJwogA)
PICO] A look at Sonic the Hedgehog's Gameworld localization
![](https://lostmediawiki.com/w/images/thumb/9/91/Page11-458px-MeanMachinesSega05UK.pdf.jpg/344px-Page11-458px-MeanMachinesSega05UK.pdf.jpg)
Super Sonic (lost build of cancelled Sega CD port of Sega Genesis
![](https://www.sonicstadium.org/uploads/monthly_2022_06/Eggmanfull.png.1c0f52e04246376011b4e7ea3f06e10d.png)
Had Sega Not Dropped Out - Video Games - Sonic Stadium
![](https://i.ytimg.com/vi/pmt9Gp9wH4c/maxresdefault.jpg)
Sonic the Hedgehog (lost build of cancelled Amiga port of Sega Genesis platformer; 1992) - The Lost Media Wiki
![](https://lostmediawiki.com/w/images/b/b0/Boom2013Image.png)
Sonic Boom 2013 (lost livestream of Sonic the Hedgehog convention; 2013) - The Lost Media Wiki
Sister Sonic (lost build of cancelled Sonic the Hedgehog localization of Popful Mail Sega CD side-scrolling platformer; 1993) - The Lost Media Wiki
![](https://static.wikia.nocookie.net/nickstory/images/6/66/1993-11-26_1730pm_The_Ren_%26_Stimpy_Show.png/revision/latest/smart/width/386/height/259?cb=20210312154038)
Sonic Jr. (Unreleased Pico Game, 1994 Existence Unconfirmed
![](https://highwayforever.files.wordpress.com/2016/05/i50001.png)
circuit, Highway Forever
![](https://lostmediawiki.com/w/images/thumb/1/17/Zero_1.jpg/191px-Zero_1.jpg)
Editing Sonic the Hedgehog (lost Winter Consumer Electronics Show 1991 demo build of Sega Genesis/Mega Drive platformer; 1991) - The Lost Media Wiki
![](https://i.ytimg.com/vi/VDfTx59pR1w/maxresdefault.jpg)
Sonic Unused Content/Prototype Digging General, Page 2