Play Sonic 2 Delta II Online

Sonic 2 Delta II is a fan-made hack of the original Sonic the Hedgehog 2 for the Sega Genesis, released unofficially with no official publisher or developer attached. It exists as a reimagined version of a classic platformer from the 16-bit era, built for players who already know the base game well and want a fresh challenge.

You control Sonic, often with Tails in tow, as you run, jump, and spin through redesigned levels to stop Dr. Robotnik. The main goal remains collecting Chaos Emeralds and defeating the final boss, but the path is filled with altered enemy placements, new level routes, and modified stage layouts that demand more careful navigation. The pacing is faster and more demanding, with a higher difficulty that punishes mistakes but rewards memorization and quick reflexes. It feels like rediscovering a familiar world that suddenly has sharper teeth.