Sonic Into The Void SHC 2015 Demo is a demo build of a fan-made Sonic the Hedgehog game for the Sega Genesis, likely showcased at the SHC (Sonic Hacking Contest) of 2015. The title indicates a focus on a unique storyline or level design related to 'the Void.'  Being a demo for a contest implies that it has a specific release date and is part of a wider event. The name suggests an intriguing new direction and its demo nature indicates it was an early stage of development, made outside of Sega's development pipeline.

Sonic Into The Void SHC 2015 Demo

Sonic in Colored Zone