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 Super Mario Bros. SEGA Genesis Online Game
Hey! Ready to play the classic Sega Genesis game Super Mario Bros. online for free? Simply open your browser, visit our website, and start playing instantly without any downloads. Relive the nostalgia of this iconic game and enjoy hours of fun jumping and stomping your way through the Mushroom Kingdom. No need to register or pay anything – just click and play! Have a blast with Super Mario Bros. right now!