And now for some fun secrets for the new Game & Watch: Super Mario Bros.! 
Finish Super Mario Bros. and you’ll unlock hard mode, with different enemies appearing.
In the original game, hard mode was only available until you turned off the Nintendo Entertainment System!
In the original game, hard mode was only available until you turned off the Nintendo Entertainment System!
Unlock Infinite Mario mode in Super Mario Bros. and Super Mario Bros.: The Lost Levels by holding the A button at the title screen.
Voilà, no more Game Over!
Voilà, no more Game Over!
Press and hold the A button for more than 5 seconds on the title screen of the Ball game to play as Luigi!
Finally, look out for 35 special events in the Digital Clock, including:
7:00 AM/PM - Monty Mole appears from the ground and runs around.
1:11 AM/PM - 3 Bloopers appear and swim up to the top of screen.
5:55 AM/PM - Blocks showing the time change to coins.
7:00 AM/PM - Monty Mole appears from the ground and runs around.
1:11 AM/PM - 3 Bloopers appear and swim up to the top of screen.
5:55 AM/PM - Blocks showing the time change to coins.
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