Default Controls
← → ↑ ↓ = Directions
A = z
B = x
X = a
Y = s
C (Top-Left Shoulder) = q
Z (Top-Right Shoulder) = e
L2 (Bottom-Right Shoulder) = r
R2 (Bottom-Right Shoulder) = t
Mode = Right Shift
Start = Enter
About the Sonic 3 & Knuckles: Master Edition 2 Extra Mode SEGA Genesis Online Game
Hey! Ready to play Sonic 3 & Knuckles: Master Edition 2 Extra Mode online for free? No downloads needed, just click and start playing in your browser. Enjoy the classic Sega Genesis game with added features and challenges. Have fun speeding through levels as Sonic, gliding with Knuckles, and defeating enemies. Experience the nostalgia of this iconic game anytime, anywhere. Just hit play and let the adventure begin!