Sonic 3 Episode Shadow is a ROM hack of Sonic the Hedgehog 3 for the Sega Genesis that likely focuses on Shadow the Hedgehog, a character from later Sonic games. This fan-made modification likely integrates Shadow into the original Sonic 3's story and gameplay. The core gameplay would generally follow the platforming style of the original Sega game but with modifications to incorporate Shadow's character and abilities.

Sonic 3 Episode Shadow

Sonic 3 Cz