Sonic Jr. (lost build of unreleased Sega Pico game; existence

Sonic JR., Cancelled Games Wiki

Sonic Synergy (lost original build of Sonic Boom: Rise of Lyric Wii U action-adventure game; 2007-2013) - The Lost Media Wiki

Editing Sonic Triple Trouble (lost Master System conversion of Sega Game Gear platformer; 1994) - The Lost Media Wiki

Sonic X-Treme (found build of unreleased SEGA Saturn platformer

Sonic the Hedgehog (lost build of cancelled Amiga port of Sega Genesis platformer; 1992) - The Lost Media Wiki

Sonic the Hedgehog (lost build of cancelled Sega CD port of Sega Genesis platformer; 1992) - The Lost Media Wiki

Fans Resurrect a Long-Lost Sonic the Hedgehog Game

A closer look at the Sega Pico video game console : r

Sonic Runners (found endless runner mobile game; 2015) - 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

Sonic Jr. (Unreleased Pico Game, 1994 Existence Unconfirmed

The Retrogaming Times - Tenth Issue - September 2017 - Page 2/2

Sonic the Hedgehog (lost build of cancelled Sega CD port of Sega