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 SMB1 Mario in Sonic The Hedgehog SEGA Genesis Online Game
Hey there! Welcome to play “SMB1 Mario in Sonic The Hedgehog” online for free in your browser. Experience the ultimate crossover as Mario enters the world of Sonic to take on new challenges and enemies. Jump, run, and collect coins as you navigate through familiar Sonic levels with a Mario twist. No downloads required – just click and play instantly. Have fun exploring this unique mashup of two iconic gaming franchises. Enjoy the nostalgia and excitement of playing as Mario in the fast-paced world of Sonic!