Sonic: Christmas Trouble is a festive, high-quality ROM hack of the original Sonic the Hedgehog for the Sega Genesis. First released for the Sonic Hacking Contest 2017, the project is a complete seasonal overhaul that replaces the standard levels with winter-themed environments.
Sonic 1: South Island Definitive is a hack by RadiantNexus Team, which seeks to reimagine Sonic 1 by rearranging levels. remixing music, adding features from future games, and readding scrapped ideas in new and interesting ways. Major features: 3 acts of reimagined level design, including one act that has yet to be fully reimagined in any other hack. A miniboss. Massive art overhaul all over the place. Music made by ProjectFM and MechaKnuckles. Menus! A custom splash screen. There's been massive engine overhauls as well, including the Sonic 3 level layout format for massive levels, and the Sonic 3 object manager to go alongside this.
The project reimagines the original West Side Island adventure with a narrative focused on Dr. Robotnik’s "terraformation scheme," which has transformed classic zones into surreal, expanded environments filled with new secrets and branching paths.
Sonic Sunventure is a ROM hack of the original Sonic the Hedgehog (1991) for the Sega Genesis. It features redesigned levels, new mechanics, custom music, and updated visuals with a time travel theme.
Sonic 3: D.A. Garden Edition is a ROM hack of Sonic 3 & Knuckles created by D.A. Garden. It aims to be a "vanilla" but complete and fully featured take on S3K, with 23 acts of new level layouts matching the scope and size of the original game. In 2020, a user named Thorn ported the hack to the Sonic 3 AIR project as a mod, allowing it to be played with the additional features AIR provides.
Sonic the Hedgehog: A New Adventure is a ROM hack of the original 1991 game for the Sega Genesis. The project centers on a unique narrative where Sonic and Tails explore a reality-distorted South Island following the escape of a trapped, god-like chinchilla entity.
The Sonic 1 Easy Mode hack is a modification primarily designed as a "port" of the official Easy Mode found in Sonic Jam on the Sega Saturn. It focuses on making the 1991 classic more accessible by altering core game structures and level designs.
Released in 2009 on Nintendo Entertainment System, by willj168.