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 SEGA Genesis Online Game
Hey there! Ready to play Sonic 3 & Knuckles: Master Edition 2 online for free in your browser? No need to download anything, just click and start playing. Join Sonic, Tails, and Knuckles in their adventure to defeat Dr. Robotnik and save the world. Enjoy the classic gameplay, amazing graphics, and catchy music of this beloved Sega Genesis game. Get ready to spin, jump, and dash your way through exciting levels. Have fun and let’s go!