Polygon spoke with Sonic 2 director Jeff Fowler about creating Knuckles and working with Idris Elba. Paramount and Sega released Sonic 2 to theaters in April.

Sonic & Knuckles was borne out of both technical limitations and corporate influence.Originally, Sega had planned for Sonic 3 and Sonic & Knuckles to be one game.However, standard cartridges were ...