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Default Controls
← → ↑ ↓ = Directions
Z = A, X = B
A = X, S = Y
D = L, C = R
Enter (↵) = Start
Shift = Select
About the Mixed Up Mario Bros. Nintendo Entertainment System (NES) Online Game
Welcome to Mixed Up Mario Bros.! In this NES game, you can play as Mario and Luigi in a mixed up world where everything is not as it seems. Jump, run, and collect coins as you navigate through challenging levels filled with surprises. The best part? You can play this game online in your browser for free, no downloads required! Just click and start playing right away. Have fun and see if you can beat the high score!
