Sonic in Streets of Rage 3 is a fan-made game for Sega Genesis that likely blends the gameplay of Sonic the Hedgehog with elements from the Streets of Rage series. It could include aspects of beat 'em up gameplay alongside the platforming, creating a unique experience.  Given its fan-made status, it's independent of Sega's production. This unique crossover of game concepts represents an inventive approach within the fan community's game creations.

Sonic in Streets of Rage 3

Sonic Hex Adventure (Final Build)