Sonic Overture '95

Sonic Overture '95 is a fan-made prequel to the first Sonic the Hedgehog, inspired by 32-bit games from the Saturn era and the scraped concepts from the original Sonic the Hedgehog. It tells the story of Sonic's adventures on Christmas Island. The game is an unofficial revival of the game known as Sonic Overture, which had a demo released in 2014.