Default Controls
← → ↑ ↓ = Directions
Z = A, X = B
A = X, S = Y
D = L, C = R
Enter (↵) = Start
Shift = Select
About the Mario Bros. Featuring Karnov!! Nintendo Entertainment System (NES) Online Game
Hey! Ready to play “Mario Bros. Featuring Karnov!!” on your browser for free? This NES game combines the classic Mario Bros. gameplay with the unique abilities of Karnov. Jump, run, and defeat enemies as you navigate through different levels. No need to download anything – just click and start playing instantly. Enjoy the nostalgic experience of playing this retro game online, anytime you want. Have fun!