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 SEGA Genesis Online Game
Hey, ready to dive into some classic Sonic action? Play Sonic 3 & Knuckles: Master Edition online for free in your browser, no downloads needed! Take control of Sonic, Tails, or Knuckles as you race through levels, defeat enemies, and collect Chaos Emeralds. Enjoy the seamless combination of Sonic 3 and Sonic & Knuckles in this ultimate edition. Just click the link, start playing, and relive the nostalgia of this iconic Sega Genesis game!