|Sonic & Knuckles|
Cover - Genesis.
|Developer(s)|| Sega Technical Institute|
Sonic & Knuckles is a game/expansion released on the Sega Genesis starring Sonic the Hedgehog and Knuckles the Echidna. It is the first game to feature Knuckles as a playable character. Its success led to Knuckles becoming a playable character in Sonic the Hedgehog 3. It has since been ported to the GameCube, DS, and Virtual Console. If the player downloads both Sonic and Knuckles and Sonic 2 or Sonic 3 onto the Wii, Knuckles will become a playable character in Sonic 2 and Sonic 3.
|Sonic the Hedgehog games|
|2D platformers||Sonic the Hedgehog 2 Chaos 3 Sonic & Knuckles Triple Trouble Advance Advance 2 Advance 3 Rush Rush Adventure 4|
|3D platformers||Sonic 3D DX: Director's Cut 2: Battle Heroes Shadow the Hedgehog Secret Rings Unleashed Black Knight Colors Generations|
|Racing||Riders Riders: Zero Gravity All-Stars Racing All-Stars Racing Transformed|
|Spin-offs||Dr. Robotnik's Mean Bean Machine Spinball Pinball Party Battle Mario & Sonic at the Olympic Games Chronicles: The Dark Brotherhood Mario & Sonic at the Olympic Winter Games Mario & Sonic at the London 2012 Olympic Games Mario & Sonic at the Sochi 2014 Olympic Winter Games|
|Compilations||Mega Collection Gems Collection Classic Collection|